GHSL-2026-122: GHSL-2026-115–GHSL-2026-122: Various memory access violations in 7-Zip

Published May 22, 2026
·
Updated

The 7-Zip project, version 26.00, contains various memory access violations, out-of-bounds (OOB) read issues, uninitialized memory vulnerabilities, integer overflow flaws in various archive formats (e.g., 7z, SquashFS, UDF, UEFI, WIM, and Ar), and path traversal in sample app, which could potentially lead to compromising system integrity or accessing sensitive data.

Affected Software

1 affected component
7-Zip 7-Zip=26.00

Event History

May 22, 2026
Advisory Published
via GitHub Security Lab·12:00 AM
Data Sourced
via GitHub Security Lab·12:00 AM
Description

Frequently Asked Questions

1

What is the severity of GHSL-2026-122?

The severity of GHSL-2026-122 is rated as 57.

2

How do I fix GHSL-2026-122?

To fix GHSL-2026-122, update to the latest version of 7-Zip that addresses the memory access violations.

3

What types of vulnerabilities are present in GHSL-2026-122?

GHSL-2026-122 includes memory access violations, out-of-bounds read issues, uninitialized memory vulnerabilities, integer overflow flaws, and path traversal vulnerabilities.

4

Which archive formats are affected by GHSL-2026-122?

GHSL-2026-122 affects various archive formats including 7z, SquashFS, UDF, UEFI, WIM, and Ar.

5

Is GHSL-2026-122 related to other vulnerabilities?

Yes, GHSL-2026-122 is related to other vulnerabilities such as GHSL-2026-115.

Contact

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