Name: CVE-2026-86137: Out-of-bounds Read
Creator: Rapid7
Published: 2026-09-05T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-86137, CWE-125, CVSS 6.1, EPSS 0.00195

In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the NXT macro in xmlregexp.

CVSS Details

CVSS 3.1 Base Score: 6.1
CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Amazon_linux_2023	—	Upgrade libxml2-staticUpgrade libxml2-develUpgrade libxml2-debuginfoUpgrade libxml2-debugsourceUpgrade python3-libxml2-debuginfoUpgrade python3-libxml2Upgrade libxml2	Sep 30, 2026	Sep 5, 2026
Vmware Photon_os	—	Use 'tdnf update' to upgrade all packages to the latest version.	Sep 21, 2026	Sep 5, 2026

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CVSS Details

Covered by Rapid7

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