CVE-2026-11998: CWE-791 Incomplete filtering of special elements in Google AngularJS
A flaw in AngularJS' Strict Contextual Escaping (SCE) logic allows bypassing certain SCE policies for resource URLs and can lead to arbitrary JavaScript execution within the context of the victim's browser session. SCE's purpose is to ensure that only trusted or safe values are used in certain security-sensitive contexts, such as resource URLs, including URLs that define executable JavaScript scripts, '<iframe>' documents, route templates, etc. A flaw in the logic that tries to match entire URLs against regular expression matchers can result in partial matches for certain types of regular expressions, effectively bypassing the policies and allowing the use of unsafe values as resource URLs. This issue affects AngularJS versions greater than or equal to 1.2.0-rc.3. Note: The AngularJS project was already End-of-Life when this CVE was published and will not receive any updates to address this issue. For more information see the End-of-Life announcement https://docs.angularjs.org/misc/version-support-status .
AI Analysis
Technical Summary
This vulnerability in AngularJS arises from incomplete filtering of special elements in the Strict Contextual Escaping (SCE) mechanism. The flaw allows partial matches in URL regular expression checks, enabling attackers to bypass SCE policies designed to restrict resource URLs to trusted values. This can result in unsafe resource URLs being used, potentially leading to arbitrary JavaScript execution in the context of the victim's browser session. The issue affects AngularJS versions >=1.2.0-rc.3. Since AngularJS is end-of-life, no official fixes are available. Red Hat has published an advisory but does not provide a patch or remediation.
Potential Impact
Successful exploitation can lead to arbitrary JavaScript execution in the victim's browser, which may compromise confidentiality, integrity, and availability of the affected web application and user data. The CVSS 3.1 base score is 7.6 (High), reflecting network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, high confidentiality impact, low integrity impact, and low availability impact.
Mitigation Recommendations
No official fix or patch is available because AngularJS is end-of-life and will not receive updates for this vulnerability. Users are advised to consider migrating to supported frameworks or versions that do not include this vulnerability. Review and restrict the use of AngularJS in applications, especially those exposed to untrusted input. Consult the Red Hat advisory for additional context: https://access.redhat.com/security/cve/CVE-2026-11998.
CVE-2026-11998: CWE-791 Incomplete filtering of special elements in Google AngularJS
Description
A flaw in AngularJS' Strict Contextual Escaping (SCE) logic allows bypassing certain SCE policies for resource URLs and can lead to arbitrary JavaScript execution within the context of the victim's browser session. SCE's purpose is to ensure that only trusted or safe values are used in certain security-sensitive contexts, such as resource URLs, including URLs that define executable JavaScript scripts, '<iframe>' documents, route templates, etc. A flaw in the logic that tries to match entire URLs against regular expression matchers can result in partial matches for certain types of regular expressions, effectively bypassing the policies and allowing the use of unsafe values as resource URLs. This issue affects AngularJS versions greater than or equal to 1.2.0-rc.3. Note: The AngularJS project was already End-of-Life when this CVE was published and will not receive any updates to address this issue. For more information see the End-of-Life announcement https://docs.angularjs.org/misc/version-support-status .
CVSS v3.1
Score 7.6high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in AngularJS arises from incomplete filtering of special elements in the Strict Contextual Escaping (SCE) mechanism. The flaw allows partial matches in URL regular expression checks, enabling attackers to bypass SCE policies designed to restrict resource URLs to trusted values. This can result in unsafe resource URLs being used, potentially leading to arbitrary JavaScript execution in the context of the victim's browser session. The issue affects AngularJS versions >=1.2.0-rc.3. Since AngularJS is end-of-life, no official fixes are available. Red Hat has published an advisory but does not provide a patch or remediation.
Potential Impact
Successful exploitation can lead to arbitrary JavaScript execution in the victim's browser, which may compromise confidentiality, integrity, and availability of the affected web application and user data. The CVSS 3.1 base score is 7.6 (High), reflecting network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, high confidentiality impact, low integrity impact, and low availability impact.
Mitigation Recommendations
No official fix or patch is available because AngularJS is end-of-life and will not receive updates for this vulnerability. Users are advised to consider migrating to supported frameworks or versions that do not include this vulnerability. Review and restrict the use of AngularJS in applications, especially those exposed to untrusted input. Consult the Red Hat advisory for additional context: https://access.redhat.com/security/cve/CVE-2026-11998.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- HeroDevs
- Date Reserved
- 2026-06-11T15:46:34.897Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-11998","vendor":"Red Hat"}]
Threat ID: 6a3c4ce14853345fc1df8cd1
Added to database: 06/24/2026, 21:32:17 UTC
Last enriched: 08/01/2026, 20:18:17 UTC
Last updated: 08/07/2026, 21:41:57 UTC
Views: 132
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