CVE-2026-111754

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Prior to 20.3.33, 21.2.25, and 22.2.1, ServerPlatformLocation in Angular server-side rendering checks for protocol-relative URLs before WHATWG URL normalization. A request path containing a popping dot segment followed by multiple slashes can bypass the raw resolveUrl check and normalize to a pathname beginning with two slashes. When Angular SSR detects a mismatch with the router's final location, it can place that pathname in an HTTP Location header, causing a browser to navigate to an attacker-controlled origin. Affected applications use @angular/platform-server and @angular/ssr and either expose compatible parameter or child route shapes or pass user-controlled navigation targets through infrastructure that preserves the relevant dot segments or semicolons. Pure client-side SPAs are not affected. This issue is fixed in versions 20.3.33, 21.2.25, and 22.2.1."}], "source": {"advisory": "GHSA-w739-gvwx-grc3", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-11-03T21:23:29.234599Z", "id": "CVE-2026-111754", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-03T21:23:55.644Z"}}]}}

{}

{"affected": [{"affectedData": [{"product": "angular", "vendor": "angular", "versions": [{"status": "affected", "version": "<= 19.2.25"}, {"status": "affected", "version": ">= 20.0.0, < 20.3.33"}, {"status": "affected", "version": ">= 21.0.0, < 21.2.25"}, {"status": "affected", "version": ">= 22.0.0, < 22.2.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.33, 21.2.25, and 22.2.1, ServerPlatformLocation in Angular server-side rendering checks for protocol-relative URLs before WHATWG URL normalization. A request path containing a popping dot segment followed by multiple slashes can bypass the raw resolveUrl check and normalize to a pathname beginning with two slashes. When Angular SSR detects a mismatch with the router's final location, it can place that pathname in an HTTP Location header, causing a browser to navigate to an attacker-controlled origin. Affected applications use @angular/platform-server and @angular/ssr and either expose compatible parameter or child route shapes or pass user-controlled navigation targets through infrastructure that preserves the relevant dot segments or semicolons. Pure client-side SPAs are not affected. This issue is fixed in versions 20.3.33, 21.2.25, and 22.2.1."}], "id": "CVE-2026-111754", "lastModified": "2026-11-12T20:04:52.377", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.1, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "ACTIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-111754", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-03T21:23:29.234599Z", "version": "2.0.3"}}]}, "published": "2026-11-03T21:16:58.203", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/angular/angular/commit/450af9c813c7660b9bd91e5635f705ee3ed7b32a"}, {"source": "security-advisories@github.com", "url": "https://github.com/angular/angular/commit/83944fc8c50e86be90e8ec4184cd15002b5af262"}, {"source": "security-advisories@github.com", "url": "https://github.com/angular/angular/commit/928dcfd2582152655b5559509d057bf6a5a19521"}, {"source": "security-advisories@github.com", "url": "https://github.com/angular/angular/issues/71076"}, {"source": "security-advisories@github.com", "url": "https://github.com/angular/angular/pull/71077"}, {"source": "security-advisories@github.com", "url": "https://github.com/angular/angular/pull/71078"}, {"source": "security-advisories@github.com", "url": "https://github.com/angular/angular/pull/71079"}, {"source": "security-advisories@github.com", "url": "https://github.com/angular/angular/releases/tag/v20.3.33"}, {"source": "security-advisories@github.com", "url": "https://github.com/angular/angular/releases/tag/v21.2.25"}, {"source": "security-advisories@github.com", "url": "https://github.com/angular/angular/releases/tag/v22.2.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/angular/angular/security/advisories/GHSA-w739-gvwx-grc3"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-601"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"bugzilla": {"description": "@angular/platform-server: @angular/platform-server: Open redirect via improper URL normalization in server-side rendering", "id": "2566523", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2566523"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-601", "details": ["Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 20.3.33, 21.2.25, and 22.2.1, ServerPlatformLocation in Angular server-side rendering checks for protocol-relative URLs before WHATWG URL normalization. A request path containing a popping dot segment followed by multiple slashes can bypass the raw resolveUrl check and normalize to a pathname beginning with two slashes. When Angular SSR detects a mismatch with the router's final location, it can place that pathname in an HTTP Location header, causing a browser to navigate to an attacker-controlled origin. Affected applications use @angular/platform-server and @angular/ssr and either expose compatible parameter or child route shapes or pass user-controlled navigation targets through infrastructure that preserves the relevant dot segments or semicolons. Pure client-side SPAs are not affected. This issue is fixed in versions 20.3.33, 21.2.25, and 22.2.1.", "A flaw was found in @angular/platform-server. This vulnerability allows an unauthenticated remote attacker to trigger an open redirect, sending users to an attacker-controlled external domain. When server-side rendering (SSR) is enabled, validation checks for protocol-relative links occur before standard URL normalization. An attacker can exploit this issue by submitting a specially crafted URL with dot segments and slashes to bypass validation, causing the server to issue an unintended HTTP Location redirect header."], "name": "CVE-2026-111754", "package_state": [{"cpe": "cpe:/a:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "dotnet5.0-build-reference-packages", "product_name": "Red Hat Enterprise Linux 8"}], "public_date": "2026-11-03T20:55:11Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-111754\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-111754\nhttps://github.com/angular/angular/commit/450af9c813c7660b9bd91e5635f705ee3ed7b32a\nhttps://github.com/angular/angular/commit/83944fc8c50e86be90e8ec4184cd15002b5af262\nhttps://github.com/angular/angular/commit/928dcfd2582152655b5559509d057bf6a5a19521\nhttps://github.com/angular/angular/issues/71076\nhttps://github.com/angular/angular/pull/71077\nhttps://github.com/angular/angular/pull/71078\nhttps://github.com/angular/angular/pull/71079\nhttps://github.com/angular/angular/releases/tag/v20.3.33\nhttps://github.com/angular/angular/releases/tag/v21.2.25\nhttps://github.com/angular/angular/releases/tag/v22.2.1\nhttps://github.com/angular/angular/security/advisories/GHSA-w739-gvwx-grc3"], "statement": "Red Hat rates this vulnerability as having a Moderate severity because exploitation requires user interaction to follow a manipulated URL and is limited to open redirect phishing risks rather than direct server compromise or unauthorized data disclosure. The issue specifically impacts server-side rendering (SSR) environments running @angular/platform-server when fronted by reverse proxies that forward unnormalized dot-segment paths. Client-side single-page applications (SPAs) and setups without Angular SSR are not impacted.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,19.2.25]"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[20.0.0,20.3.33)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[21.0.0,21.2.25)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[22.0.0,22.2.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "angular", "source": "cna", "vendor": "angular"}, "product": "angular", "vendor": "angular"}], "created": "2026-11-03T23:30:06.910135+00:00", "updated": "2026-11-04T04:00:13.926025+00:00", "vendors": ["angular", "angular$PRODUCT$angular"]}