CVE-2026-24812

An improper pointer arithmetic in root-project/root at builtins/zlib/inftrees.c

State: Published
Severity: 9.3 Critical
Published: Jan 27, 2026
Updated: Mar 3, 2026
Reserved: Jan 27, 2026

Description

Vulnerability in root-project root (builtins/zlib modules). This vulnerability is associated with program files inftrees.C.

This issue affects root: through 6.36.00-rc1.

Scores

CVSS	Score	Vector	Source
4.0	9.3 Critical	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/S:N/AU:Y/R:U/V:D/RE:M/U:Amber	GovTech CSG

Weaknesses

CWE-125 Out-of-bounds Read

Affected Products

Product	Versions
rootroot-project	6.36.00-rc1 and earlierAffected

References

https://github.com/root-project/root/pull/18527patch
https://root.cern/blog/recent-common-vulnerabilities-when-does-ROOT-need-to-be-updated/

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