CWE-441
Allowed-with-ReviewUnintended Proxy or Intermediary ('Confused Deputy')
Abstraction: Class · Status: Draft
The product receives a request, message, or directive from an upstream component, but the product does not sufficiently preserve the original source of the request before forwarding the request to an external actor that is outside of the product's control sphere. This causes the product to appear to be the source of the request, leading it to act as a proxy or other intermediary between the upstream component and the external actor.
275 vulnerabilities reference this CWE, most recent first.
GHSA-RXXH-J336-V3C7
Vulnerability from github – Published: 2025-09-04 21:31 – Updated: 2025-09-04 21:31In isSystemUid of AccountManagerService.java, there is a possible way for an app to access privileged APIs due to a confused deputy. This could lead to local privilege escalation with no additional execution privileges needed. User interaction is not needed for exploitation.
{
"affected": [],
"aliases": [
"CVE-2025-48545"
],
"database_specific": {
"cwe_ids": [
"CWE-441"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-04T19:15:41Z",
"severity": "MODERATE"
},
"details": "In isSystemUid of AccountManagerService.java, there is a possible way for an app to access privileged APIs due to a confused deputy. This could lead to local privilege escalation with no additional execution privileges needed. User interaction is not needed for exploitation.",
"id": "GHSA-rxxh-j336-v3c7",
"modified": "2025-09-04T21:31:38Z",
"published": "2025-09-04T21:31:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-48545"
},
{
"type": "WEB",
"url": "https://android.googlesource.com/platform/frameworks/base/+/66ac17909252c80b0edf7f4ae282bce4579410ad"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2025-09-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-V2W2-GRHG-JF52
Vulnerability from github – Published: 2026-03-02 21:31 – Updated: 2026-08-26 21:31In setupLayout of PickActivity.java, there is a possible way to start any activity as a DocumentsUI app due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
{
"affected": [],
"aliases": [
"CVE-2026-0013"
],
"database_specific": {
"cwe_ids": [
"CWE-441"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-02T19:16:29Z",
"severity": "HIGH"
},
"details": "In setupLayout of PickActivity.java, there is a possible way to start any activity as a DocumentsUI app due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.",
"id": "GHSA-v2w2-grhg-jf52",
"modified": "2026-08-26T21:31:22Z",
"published": "2026-03-02T21:31:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0013"
},
{
"type": "WEB",
"url": "https://source.android.com/docs/security/bulletin/2026/2026-03-01"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2026-03-01"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2026/Aug/114"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2026/08/22/4"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-V64C-M25X-VQ5F
Vulnerability from github – Published: 2026-09-29 18:32 – Updated: 2026-09-29 21:33Confused deputy in Mobile in Google Chrome on on Android prior to 154.0.8037.57 allowed a local attacker leveraging social engineering to obtain sensitive information via a co-installed app. (Chromium security severity: Low)
{
"affected": [],
"aliases": [
"CVE-2026-95328"
],
"database_specific": {
"cwe_ids": [
"CWE-441"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-29T18:17:25Z",
"severity": "MODERATE"
},
"details": "Confused deputy in Mobile in Google Chrome on on Android prior to 154.0.8037.57 allowed a local attacker leveraging social engineering to obtain sensitive information via a co-installed app. (Chromium security severity: Low)",
"id": "GHSA-v64c-m25x-vq5f",
"modified": "2026-09-29T21:33:19Z",
"published": "2026-09-29T18:32:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-95328"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0856730748.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/553148673"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-VFC8-Q896-V58J
Vulnerability from github – Published: 2026-09-05 12:31 – Updated: 2026-09-05 12:31Sim before 0.8.14 classifies tool requests as internal based on URL prefix matching without scheme normalization, skipping SSRF validation and minting internal authentication tokens. Authenticated workflow authors can bypass external URL validation by supplying paths starting with /api/ in HTTP blocks to reach internal-only endpoints like POST /api/function/execute.
{
"affected": [],
"aliases": [
"CVE-2026-86115"
],
"database_specific": {
"cwe_ids": [
"CWE-441"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-05T10:16:42Z",
"severity": "MODERATE"
},
"details": "Sim before 0.8.14 classifies tool requests as internal based on URL prefix matching without scheme normalization, skipping SSRF validation and minting internal authentication tokens. Authenticated workflow authors can bypass external URL validation by supplying paths starting with /api/ in HTTP blocks to reach internal-only endpoints like POST /api/function/execute.",
"id": "GHSA-vfc8-q896-v58j",
"modified": "2026-09-05T12:31:25Z",
"published": "2026-09-05T12:31:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-86115"
},
{
"type": "WEB",
"url": "https://github.com/simstudioai/sim/pull/7179"
},
{
"type": "WEB",
"url": "https://github.com/geo-chen/oss/blob/main/sim.md"
},
{
"type": "WEB",
"url": "https://github.com/simstudioai/sim"
},
{
"type": "WEB",
"url": "https://github.com/simstudioai/sim/blob/v0.8.13/apps/sim/lib/auth/hybrid.ts"
},
{
"type": "WEB",
"url": "https://github.com/simstudioai/sim/blob/v0.8.13/apps/sim/tools/index.ts"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/sim-before-0.8.14-confused-deputy-in-tool-url-routing-mints-an-internal-token-for-a-user-supplied-api-path"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/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:L/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-VFWV-3CV9-CXM2
Vulnerability from github – Published: 2025-04-04 03:30 – Updated: 2025-04-04 03:30Unintended proxy or intermediary ('Confused Deputy') issue exists in HMI ViewJet C-more series and HMI GC-A2 series, which may allow a remote unauthenticated attacker to use the product as an intermediary for FTP bounce attack.
{
"affected": [],
"aliases": [
"CVE-2025-25061"
],
"database_specific": {
"cwe_ids": [
"CWE-441"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-04T02:15:17Z",
"severity": "MODERATE"
},
"details": "Unintended proxy or intermediary (\u0027Confused Deputy\u0027) issue exists in HMI ViewJet C-more series and HMI GC-A2 series, which may allow a remote unauthenticated attacker to use the product as an intermediary for FTP bounce attack.",
"id": "GHSA-vfwv-3cv9-cxm2",
"modified": "2025-04-04T03:30:20Z",
"published": "2025-04-04T03:30:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-25061"
},
{
"type": "WEB",
"url": "https://jvn.jp/en/jp/JVN17260367"
},
{
"type": "WEB",
"url": "https://www.electronics.jtekt.co.jp/en/topics/202503207269"
},
{
"type": "WEB",
"url": "https://www.electronics.jtekt.co.jp/en/topics/202503207271"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-VHF9-87P2-28M8
Vulnerability from github – Published: 2026-09-08 21:34 – Updated: 2026-09-10 18:31In screenArgsForPermissionCheckIfAny of multiple locations there is a possible risk of unauthorized access due to a confused deputy. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
{
"affected": [],
"aliases": [
"CVE-2026-45519"
],
"database_specific": {
"cwe_ids": [
"CWE-441"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-08T19:17:57Z",
"severity": "LOW"
},
"details": "In screenArgsForPermissionCheckIfAny of multiple locations there is a possible risk of unauthorized access due to a confused deputy. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.",
"id": "GHSA-vhf9-87p2-28m8",
"modified": "2026-09-10T18:31:32Z",
"published": "2026-09-08T21:34:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45519"
},
{
"type": "WEB",
"url": "https://source.android.com/docs/security/bulletin/2026/2026-09-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-VJHC-CF4P-72Q4
Vulnerability from github – Published: 2026-06-30 18:15 – Updated: 2026-06-30 18:15Summary
Fission's buildermgr controller processed Package CRDs without verifying that Package.spec.environment.namespace matched Package.metadata.namespace.
Details
An attacker with packages.fission.io/create in their own namespace could set spec.environment.namespace to any other tenant's namespace. The controller then used its high-privilege service account to fetch the Environment
cross-namespace and dispatch the build command into the victim namespace's builder pod.
The build command's stdout is written verbatim into Package.status.buildlog. By running malicious code through an npm preinstall lifecycle hook (or any equivalent build step), the attacker could read the victim namespace's
fission-builder Bearer token from inside that builder pod and surface it through the build log — then use the leaked token to read every Secret and ConfigMap in the victim namespace.
Impact
Cross-tenant compromise: a package author in one namespace could execute code inside another tenant's builder pod and exfiltrate that namespace's fission-builder service-account token, giving namespace-wide secret and configmap read in
the victim namespace.
Fix
Fixed in #3379 and released in v1.24.0. Two checks in series:
- Admission webhook (
pkg/webhook/package.go::Validate) rejectsPackage.spec.environment.namespace != Package.metadata.namespace. An empty namespace is still accepted; the controllers default it to the package's own namespace. - Controller belt-and-braces: the same check is repeated in
pkg/buildermgr/pkgwatcher.go::buildandpkg/buildermgr/common.go::buildPackagebefore the cross-namespaceEnvironments(...).Getcall, so a stale Package CR or a webhook-bypass cluster (failurePolicy=Ignore) cannot exploit the primitive either.
Behavioural change
Packages that explicitly set spec.environment.namespace to a different namespace are now rejected at admission. Empty-string remains accepted (resolves to the package's own namespace, the same as the prior implicit behaviour).
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 1.23.0"
},
"package": {
"ecosystem": "Go",
"name": "github.com/fission/fission"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.24.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-49821"
],
"database_specific": {
"cwe_ids": [
"CWE-441",
"CWE-862"
],
"github_reviewed": true,
"github_reviewed_at": "2026-06-30T18:15:27Z",
"nvd_published_at": "2026-06-10T18:17:10Z",
"severity": "HIGH"
},
"details": "### Summary\n\nFission\u0027s `buildermgr` controller processed `Package` CRDs without verifying that `Package.spec.environment.namespace` matched `Package.metadata.namespace`.\n\n### Details\n\nAn attacker with `packages.fission.io/create` in their own namespace could set `spec.environment.namespace` to any other tenant\u0027s namespace. The controller then used its high-privilege service account to fetch the Environment\ncross-namespace and dispatch the build command into the **victim namespace\u0027s** builder pod.\n\nThe build command\u0027s stdout is written verbatim into `Package.status.buildlog`. By running malicious code through an npm `preinstall` lifecycle hook (or any equivalent build step), the attacker could read the victim namespace\u0027s\n`fission-builder` Bearer token from inside that builder pod and surface it through the build log \u2014 then use the leaked token to read every Secret and ConfigMap in the victim namespace.\n\n### Impact\n\nCross-tenant compromise: a package author in one namespace could execute code inside another tenant\u0027s builder pod and exfiltrate that namespace\u0027s `fission-builder` service-account token, giving namespace-wide secret and configmap read in\n the victim namespace.\n\n### Fix\n\nFixed in [#3379](https://github.com/fission/fission/pull/3379) and released in [v1.24.0](https://github.com/fission/fission/releases/tag/v1.24.0). Two checks in series:\n\n- **Admission webhook** (`pkg/webhook/package.go::Validate`) rejects `Package.spec.environment.namespace != Package.metadata.namespace`. An empty namespace is still accepted; the controllers default it to the package\u0027s own namespace.\n- **Controller belt-and-braces:** the same check is repeated in `pkg/buildermgr/pkgwatcher.go::build` and `pkg/buildermgr/common.go::buildPackage` before the cross-namespace `Environments(...).Get` call, so a stale Package CR or a\nwebhook-bypass cluster (`failurePolicy=Ignore`) cannot exploit the primitive either.\n\n### Behavioural change\n\nPackages that explicitly set `spec.environment.namespace` to a different namespace are now rejected at admission. Empty-string remains accepted (resolves to the package\u0027s own namespace, the same as the prior implicit behaviour).",
"id": "GHSA-vjhc-cf4p-72q4",
"modified": "2026-06-30T18:15:27Z",
"published": "2026-06-30T18:15:27Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/fission/fission/security/advisories/GHSA-vjhc-cf4p-72q4"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49821"
},
{
"type": "WEB",
"url": "https://github.com/fission/fission/pull/3379"
},
{
"type": "WEB",
"url": "https://github.com/fission/fission/commit/e2b92663499f4dc3a1e2d38178f39c3c65e0134a"
},
{
"type": "PACKAGE",
"url": "https://github.com/fission/fission"
},
{
"type": "WEB",
"url": "https://github.com/fission/fission/releases/tag/v1.24.0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "Fission: Cross-namespace Environment reference in Package allows build-time command execution and SA token exfiltration"
}
GHSA-VP2F-59W8-7R7R
Vulnerability from github – Published: 2026-09-26 15:31 – Updated: 2026-09-26 15:31Capgo (capgo.app) exposes a native build TUS upload proxy (supabase/functions/_backend/public/build/upload.ts) that authorizes a caller against a single build job identified by the supplied builder_job_id and validates only that job's stored upload_path, but then forwards the user-controlled TUS resource suffix taken from /build/upload/:jobId/* to the builder service while injecting Capgo's privileged builder API key. Because the forwarded suffix is never bound to the authorized job's upload_path or upload_session_key, a caller holding a valid 'all' or 'write' Capgo API key with app.build_native permission for one application can use its authorized proxy path for job A to write to the TUS upload resource of another job B, provided that resource suffix is known or exposed, corrupting that build's artifacts. All versions are affected; no patch was available at the time of advisory publication.
{
"affected": [],
"aliases": [
"CVE-2026-100625"
],
"database_specific": {
"cwe_ids": [
"CWE-441"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-26T14:16:43Z",
"severity": "HIGH"
},
"details": "Capgo (capgo.app) exposes a native build TUS upload proxy (supabase/functions/_backend/public/build/upload.ts) that authorizes a caller against a single build job identified by the supplied builder_job_id and validates only that job\u0027s stored upload_path, but then forwards the user-controlled TUS resource suffix taken from /build/upload/:jobId/* to the builder service while injecting Capgo\u0027s privileged builder API key. Because the forwarded suffix is never bound to the authorized job\u0027s upload_path or upload_session_key, a caller holding a valid \u0027all\u0027 or \u0027write\u0027 Capgo API key with app.build_native permission for one application can use its authorized proxy path for job A to write to the TUS upload resource of another job B, provided that resource suffix is known or exposed, corrupting that build\u0027s artifacts. All versions are affected; no patch was available at the time of advisory publication.",
"id": "GHSA-vp2f-59w8-7r7r",
"modified": "2026-09-26T15:31:15Z",
"published": "2026-09-26T15:31:15Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/Cap-go/capgo.app/security/advisories/GHSA-r45q-x4gr-3mvv"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-100625"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/capgo-build-upload-proxy-authorization-bypass-via-tus-resource"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/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-VQ9G-7664-C37X
Vulnerability from github – Published: 2026-09-09 03:30 – Updated: 2026-09-09 18:31Confused deputy in BackgroundFetch in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to leak sensitive information via a crafted HTML page. (Chromium security severity: Medium)
{
"affected": [],
"aliases": [
"CVE-2026-87453"
],
"database_specific": {
"cwe_ids": [
"CWE-441"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-09T01:17:01Z",
"severity": "MODERATE"
},
"details": "Confused deputy in BackgroundFetch in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to leak sensitive information via a crafted HTML page. (Chromium security severity: Medium)",
"id": "GHSA-vq9g-7664-c37x",
"modified": "2026-09-09T18:31:40Z",
"published": "2026-09-09T03:30:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-87453"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/495444970"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-VR7G-637M-V9MM
Vulnerability from github – Published: 2026-07-24 21:32 – Updated: 2026-07-30 03:31A flaw was found in the cluster-proxy service-proxy component used in Red Hat Advanced Cluster Management for Kubernetes (RHACM) and multicluster-engine (MCE). The service-proxy appends impersonation group headers to proxied requests without first removing caller-supplied values, and the spoke ServiceAccount holds unrestricted impersonation permissions. An authenticated hub principal can inject an Impersonate-Group header to escalate to cluster-admin on every managed cluster.
{
"affected": [],
"aliases": [
"CVE-2026-17107"
],
"database_specific": {
"cwe_ids": [
"CWE-441"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-24T19:16:55Z",
"severity": "HIGH"
},
"details": "A flaw was found in the cluster-proxy service-proxy component used in Red Hat Advanced Cluster Management for Kubernetes (RHACM) and multicluster-engine (MCE). The service-proxy appends impersonation group headers to proxied requests without first removing caller-supplied values, and the spoke ServiceAccount holds unrestricted impersonation permissions. An authenticated hub principal can inject an Impersonate-Group header to escalate to cluster-admin on every managed cluster.",
"id": "GHSA-vr7g-637m-v9mm",
"modified": "2026-07-30T03:31:09Z",
"published": "2026-07-24T21:32:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-17107"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:46885"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:47388"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:47735"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:47949"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:47953"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:47974"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2026:48284"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2026-17107"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2506771"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
Enforce the use of strong mutual authentication mechanism between the two parties.
Mitigation
Whenever a product is an intermediary or proxy for transactions between two other components, the proxy core should not drop the identity of the initiator of the transaction. The immutability of the identity of the initiator must be maintained and should be forwarded all the way to the target.
CAPEC-219: XML Routing Detour Attacks
An attacker subverts an intermediate system used to process XML content and forces the intermediate to modify and/or re-route the processing of the content. XML Routing Detour Attacks are Adversary in the Middle type attacks (CAPEC-94). The attacker compromises or inserts an intermediate system in the processing of the XML message. For example, WS-Routing can be used to specify a series of nodes or intermediaries through which content is passed. If any of the intermediate nodes in this route are compromised by an attacker they could be used for a routing detour attack. From the compromised system the attacker is able to route the XML process to other nodes of their choice and modify the responses so that the normal chain of processing is unaware of the interception. This system can forward the message to an outside entity and hide the forwarding and processing from the legitimate processing systems by altering the header information.
CAPEC-465: Transparent Proxy Abuse
A transparent proxy serves as an intermediate between the client and the internet at large. It intercepts all requests originating from the client and forwards them to the correct location. The proxy also intercepts all responses to the client and forwards these to the client. All of this is done in a manner transparent to the client.