CVE-2026-89161

pcre2: PCRE2: Memory corruption vulnerability in pcre2_jit_match

Published Sep 11, 2026 CVSS 3.1 · 7.4 High EPSS < 1% KEV · Not listed
Description
In PCRE2 before 10.48, pcre2_jit_match mishandles a previously copied subject being passed in as a context. An incorrect free operation can occur.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Ubuntu USN Ubuntu USN USN-8974-1 PCRE2 vulnerabilities
History
Type Values Removed Values Added
CPEs cpe:2.3:a:pcre:pcre2:10.48:rc1:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Improper Leading to Application Crash pcre2: PCRE2: Memory corruption vulnerability in pcre2_jit_match
Weaknesses CWE-1341
References
Metrics threat_severity

None

threat_severity

Important

Type Values Removed Values Added
Title Improper Leading to Application Crash
Type Values Removed Values Added
Description In PCRE2 before 10.48, pcre2_jit_match mishandles a previously copied subject being passed in as a context. An incorrect free operation can occur.
First Time appeared Pcre
Pcre pcre2
Weaknesses CWE-590
CPEs cpe:2.3:a:pcre:pcre2:*:*:*:*:*:*:*:*
Vendors & Products Pcre
Pcre pcre2
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Sep 11, 2026, 7:59 PM
Reserved
Sep 11, 2026, 4:11 AM
Status
Undergoing Analysis
Published
Sep 11, 2026, 4:18 AM
Modified
Sep 16, 2026, 7:10 PM
Severity
Important
Public date
Sep 11, 2026, 4:11 AM