Bug 2531745 (CVE-2026-89160)

Summary: CVE-2026-89160 pcre2: PCRE2: Denial of Service via out-of-bounds read during invalid UTF matching
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: akhatavk, aos-team-art-private, asdas, dpaolell, jdelft, jupierce, kshier, lgarciaa, mbiarnes, ppalepu, ppostler, prdhamdh, rhel-process-autobot, sghai, sidsharm, stcannon, suppawar, teagle, vlaad, watson-tool-maintainers, yguenane
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in PCRE2, a library for processing regular expressions. A remote attacker could exploit this vulnerability by providing a specially crafted input that triggers an out-of-bounds read during pattern matching with invalid UTF (Unicode Transformation Format) characters. This could lead to a denial of service, making the affected system or application unavailable.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2535824, 2535827, 2535823, 2535825, 2535826    
Bug Blocks:    

Description OSIDB Bzimport 2026-09-11 04:21:23 UTC
PCRE2 before 10.48 has a pcre2_match out-of-bounds read during the PCRE2_MATCH_INVALID_UTF matching of an invalid UTF subject.

Comment 3 Jon Orris 2026-10-12 21:30:29 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:81522 https://access.redhat.com/errata/RHSA-2026:81522

Comment 4 Jon Orris 2026-10-12 22:26:46 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:81532 https://access.redhat.com/errata/RHSA-2026:81532