CVE-2026-24812

Unknown Unknown - Not Provided

Buffer Overflow in root-project zlib Module (inftrees.C

Publication date: 2026-01-27

Last updated on: 2026-03-03

Assigner: Government Technology Agency of Singapore Cyber Security Group (GovTech CSG)

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-01-27

Last Modified

2026-03-03

Generated

2026-07-06

AI Q&A

2026-01-27

EPSS Evaluated

2026-07-05

NVD

CVE-2026-24812

EUVD

EUVD-2026-4762

Affected Vendors & Products

Vendor	Product	Version / Range
root-project	root	to 6.36.00-rc1 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-125	The product reads data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability exists in the ROOT project's inflate_table() function, specifically in the inftrees.c file, which was cloned from the zlib library but did not receive an important security patch originally applied to zlib. The issue involves an unsafe offset pointer optimization that could be exploited. The vulnerability was fixed by applying the same patch from zlib to the ROOT project, removing the unsafe optimization to mitigate the risk. [1]

Impact Analysis

The vulnerability has a high severity score (CVSS 9.3) and could potentially allow an attacker to exploit the inflate_table() function remotely without privileges or user interaction, leading to significant impact such as data corruption, denial of service, or other severe consequences due to the compromised decompression process. [1]

Mitigation Strategies

To mitigate this vulnerability, you should update the ROOT project software to a version that includes the security fix applied to the inflate_table() function in inftrees.c. This fix removes the vulnerable offset pointer optimization cloned from zlib. Applying the patch from the ROOT project's pull request #18527 or upgrading to a version released after May 5, 2025, will address the issue. [1]

Hi! I’m here to help you understand CVE-2026-24812. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70