CVE-2026-24811
Unknown Unknown - Not Provided
Buffer Overflow in root-project root zlib Module (inffast.C

Publication date: 2026-01-27

Last updated on: 2026-02-19

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 inffast.C. This issue affects root.
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Meta Information
Published
2026-01-27
Last Modified
2026-02-19
Generated
2026-06-16
AI Q&A
2026-01-27
EPSS Evaluated
2026-06-15
NVD
CVE-2026-24811
EUVD
EUVD-2026-4830
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
root root to 6.34.08 (inc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability exists in the root-project's zlib compression library, specifically in a cloned function called inflate_fast() within the inffast.c file. The issue stems from the function not having received a prior security patch that was applied to the original zlib code. The vulnerability relates to improper use of post-increment operations in the code, which could lead to security issues. A security fix was applied by replicating the patch from the original zlib repository to correct the code and eliminate the vulnerability. [1]

Impact Analysis

The vulnerability in the inflate_fast() function of the zlib compression library could potentially allow an attacker to exploit the improper handling of data during decompression, leading to security risks such as denial of service or execution of malicious code. Since zlib is widely used for data compression, this could impact any software relying on this library, potentially compromising system security or stability. [1]

Mitigation Strategies

To mitigate this vulnerability, you should apply the security patch that fixes the issue in the cloned inflate_fast() function within the root-project's zlib implementation. This patch replicates the fix from the original zlib repository (commit 9aaec95) and involves code changes in inffast.c to use post-increment operations correctly. Updating your root-project root or zlib compression library to include this patch (merged in May 2025) will close the security gap associated with CVE-2026-24811. [1]

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