Vulnerability DatabaseCVE-2026-89161
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CVE-2026-89161
Published:September 11, 2026
Updated:September 22, 2026
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.
Affected Packages
https://github.com/PCRE2Project/pcre2.git (GITHUB):
Affected version(s) >=pcre2-10.33 <pcre2-10.48
Fix Suggestion:
Update to version pcre2-10.48
Related Resources (3)
https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48
https://github.com/PCRE2Project/pcre2/pull/937
https://nvd.nist.gov/vuln/detail/CVE-2026-89161
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CVSS v4
Base Score:
7.5
Attack Vector
LOCAL
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.4
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Free of Memory not on the Heap
CWE-590
EPSS
Base Score:
0.12