CVE-2026-16517

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.

CVSS v3 2.9 LOW

2.9^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.4 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:43818
https://access.redhat.com/security/cve/CVE-2026-16517
https://bugzilla.redhat.com/show_bug.cgi?id=2505492

Configurations

No configuration.

History

22 Jul 2026, 19:16

Type	Values Removed	Values Added
References		() https://access.redhat.com/errata/RHSA-2026:43818 -

21 Jul 2026, 23:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-21 23:17

Updated : 2026-07-22 19:16

NVD link : CVE-2026-16517

Mitre link : CVE-2026-16517

CVE.ORG link : CVE-2026-16517

JSON object : View

Products Affected

No product.

CWE

CWE-190

Integer Overflow or Wraparound

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