CVE-2026-16517

Published: Jul 21, 2026Modified: Sep 9, 2026

2.9

Vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploitability: 1.4 / Impact: 1.4

Source: secalert@redhat.com (Secondary)

Description

A signed integer overflow vulnerability was found in libarchive's ZIP writer. In the archive_write_zip_header function in archive_write_set_format_zip.c, when ZIP encryption is enabled and the entry file size is close to INT64_MAX, the addition of the encryption overhead to the entry size overflows int64_t, resulting in undefined behavior. This could lead to incorrect Zip64 extension decisions or potential memory corruption.

Related CWEs

CWE-190

Integer Overflow or Wraparound

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

References (3)

https://access.redhat.com/errata/RHSA-2026:43818

Source: secalert@redhat.com

https://access.redhat.com/security/cve/CVE-2026-16517

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2505492

Source: secalert@redhat.com

Timeline

No history available yet.