CVE-2026-89161CWE-590

CVE-2026-89161

High · published September 11, 2026

CVSS v3.1
7.4
EPSS
0%
Percentile
2.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.4 · HIGH
Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00126 · 2.1th percentile
Weakness
CWE-590 · Free of Memory not on the Heap
Published
2026-09-11T08:18Z
Affected products (2)
ProductVersionsFixed in
pcre/pcre2< 10.4810.48
pcre/pcre2all versions—
References (2)
https://github.com/PCRE2Project/pcre2/pull/937 · [email protected]https://github.com/PCRE2Project/pcre2/releases/tag/pcre2-10.48 · [email protected]
EPSS history
Timeline
  • 12 SEP 03:22Z
    EPSS moved — → 0%
    epss
  • 11 SEP 04:11Z
    In PCRE2 before 10.48, pcre2_jit_match mishandles a previously copied subject being passed in as a context
    cvelistv5