PT-2026-34641 · Libgcrypt+2 · Libgcrypt+2

Published 2026-04-23 · Updated 2026-05-27 · CVE-2026-41990

Positive Technologies (AI Summary)

CVSS v3.1

4.0

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Libgcrypt versions prior to 1.12.2

Description Libgcrypt mishandles Dilithium signing. Specifically, writes to a static array lack a bounds check, although these writes do not use attacker-controlled data.

Recommendations Update to version 1.12.2.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2026-41990

JLSEC-2026-497

RHSA-2026:8466

USN-8319-1

Affected Products

Libgcrypt

Linuxmint

Ubuntu

References · 18

• https://ubuntu.com/security/CVE-2026-41990 · Vendor Advisory
• https://osv.dev/vulnerability/USN-8319-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-41990 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-41990 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2026-41990 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-41990 · Security Note
• https://ubuntu.com/security/notices/USN-8319-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-41989 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-41990 · Vendor Advisory
• https://osv.dev/vulnerability/JLSEC-2026-497 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-41990 · Vendor Advisory
• https://docs.bell-sw.com/security/cves/CVE-2026-41990 · Note
• https://twitter.com/CVEnew/status/2047359878419685714 · Twitter Post
• https://t.me/cveNotify/161140 · Telegram Post
• https://openwall.com/lists/oss-security/2026/04/21/1 · Note