CVE-2026-24883

LOW

GnuPG 2.5.13-2.5.16 - Denial of Service via Long Signature Packet Length

Title source: llm

Description

In GnuPG before 2.5.17, a long signature packet length causes parse_signature to return success with sig->data[] set to a NULL value, leading to a denial of service (application crash).

References (2)

Core 2

Core References

Patch, Product

https://dev.gnupg.org/T8049

Mailing List, Third Party Advisory

https://www.openwall.com/lists/oss-security/2026/01/27/8

Scores

CVSS v3 3.7

EPSS 0.0045

EPSS Percentile 35.4%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-476

Status published

Products (2)

gnupg/gnupg 2.5.13 - 2.5.17

gpg4win/gpg4win 5.0.0 - 5.0.1

Published Jan 27, 2026

Tracked Since Feb 18, 2026