PT-2026-5011 · Gnupg · Gnupg

Aisle Research + 1 · CVE-2026-24883 · Published 2026-01-01 · Updated 2026-05-27

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions GnuPG versions prior to 2.5.17

Description A long signature packet length can cause the parse signature function to return success while setting the sig->data pointer to a NULL value. This results in a denial of service, specifically an application crash.

Recommendations Update to a version of GnuPG 2.5.17 or later.

Exploit

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2026-24883

ECHO-273B-FD6D-3AFE

JLSEC-2026-566

OPENSUSE-SU-2026:10112-1

OPENSUSE-SU-2026:20136-1

SUSE-SU-2026:20179-1

SUSE-SU-2026:20195-1

Affected Products

Gnupg

References · 25

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/24xxx/CVE-2026-24883.json · Exploit
• https://osv.dev/vulnerability/JLSEC-2026-566 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10112-1 · Vendor Advisory
• https://dev.gnupg.org/T8049 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-24883 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20195-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-24883 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-24883 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:20136-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-24883 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20179-1 · Vendor Advisory
• https://suse.com/security/cve/CVE-2026-24883 · Note
• https://openwall.com/lists/oss-security/2026/01/27/8 · Note
• https://bugzilla.suse.com/1256389 · Note
• https://twitter.com/VulmonFeeds/status/2016248577576616020 · Twitter Post