Name: CVE-2026-89161: Free of Memory not on the Heap
Creator: Rapid7
Published: 2026-09-11T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-89161, CWE-590, CVSS 7.8, EPSS 0.00126

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.

CVSS Details

CVSS 3.1 Base Score: 7.8
CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alma_linux	—	Upgrade pcre2-toolsUpgrade pcre2-develUpgrade pcre2-utf16Upgrade pcre2-syntaxUpgrade pcre2-utf32Upgrade pcre2	Oct 13, 2026	Oct 12, 2026
Alpine Linux	—	Upgrade pcre2	Oct 2, 2026	Sep 11, 2026
Amazon_linux_2023	—	Upgrade pcre2-utf32Upgrade pcre2-utf16-debuginfoUpgrade pcre2-debugsourceUpgrade pcre2-develUpgrade pcre2Upgrade pcre2-debuginfoUpgrade pcre2-tools-debuginfoUpgrade pcre2-utf32-debuginfoUpgrade pcre2-toolsUpgrade pcre2-syntaxUpgrade pcre2-staticUpgrade pcre2-utf16	Sep 30, 2026	Sep 11, 2026
Debian	—	Upgrade pcre2	Sep 21, 2026	Sep 11, 2026
Redhat_linux	—	Upgrade pcre2-toolsUpgrade pcre2-develUpgrade pcre2-tools-debuginfoUpgrade pcre2-utf16-debuginfoUpgrade pcre2-debugsourceUpgrade pcre2-utf32-debuginfoUpgrade pcre2-utf16Upgrade pcre2-staticUpgrade pcre2-debuginfoUpgrade pcre2Upgrade pcre2-syntaxUpgrade pcre2-utf32No solution exists	Sep 15, 2026	Sep 11, 2026

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CVSS Details

Covered by Rapid7

Prioritise with Active Threat Intelligence