Bug 2531824

Summary: CVE-2026-89157 pcre2: PCRE2: Out-of-bounds write via large pattern input [fedora-all]
Product: [Fedora] Fedora Reporter: Ganesh <gnaik>
Component: pcre2Assignee: Lukas Javorsky <ljavorsk>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: db-sig, ljavorsk, ndavidov
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["cc2b3d94-fdfd-48b1-a69e-0c67cdc3b605"]}
Fixed In Version: Doc Type: ---
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Documentation: --- CRM:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2531744    

Description Ganesh 2026-09-11 11:02:02 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.

PCRE2 before 10.48, on 32-bit platforms, has a pcre2_pattern_convert out-of-bounds write when an attacker can provide a large pattern.