Bug 2494709

Summary: CVE-2026-11998 mozjs140: AngularJS: Arbitrary JavaScript execution due to Strict Contextual Escaping (SCE) bypass [fedora-all]
Product: [Fedora] Fedora Reporter: Jon Moroney <jmoroney>
Component: mozjs140Assignee: František Zatloukal <fzatlouk>
Status: CLOSED WONTFIX QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: 45CC: fzatlouk
Target Milestone: ---Keywords: Reopened, Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["57fd5c34-bd1f-49b9-8160-53ca963915b1"]}
Fixed In Version: Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-10-05 21:37:11 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2492579    

Description Jon Moroney 2026-06-29 21:35:53 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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 .
Comment 1 Aoife Moloney 2026-08-17 15:06:19 UTC 
This bug appears to have been reported against 'rawhide' during the Fedora Linux 45 development cycle.
Changing version to 45.
Comment 2 František Zatloukal 2026-10-05 21:37:11 UTC 
Closing CVE bug as not relevant to the mozjs package, and there is sadly no option to opt out from these reports :( .