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Vulnerability · Published Apr 23, 2026 · Assigned by mitre

CVE-2026-41989

Medium 6.7

In plain English

A medium-severity out-of-bounds write in Libgcrypt from gnupg. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.7Medium
Exploit odds (30 days)0.2%top 92.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:10libgcrypt1.11.0-7.el10_2ALSA-2026:50144
AlmaLinux:8libgcrypt1.8.5-8.el8_10ALSA-2026:47117
AlmaLinux:9libgcrypt1.10.0-13.el9_8ALSA-2026:50147
AlmaLinux:10libgcrypt-devel1.11.0-7.el10_2ALSA-2026:50144
AlmaLinux:8libgcrypt-devel1.8.5-8.el8_10ALSA-2026:47117
AlmaLinux:9libgcrypt-devel1.10.0-13.el9_8ALSA-2026:50147
Debian:12libgcrypt201.10.1-3+deb12u1DEBIAN-CVE-2026-41989
Debian:13libgcrypt201.11.0-7+deb13u1DEBIAN-CVE-2026-41989
Debian:14libgcrypt201.12.2-1DEBIAN-CVE-2026-41989
Rocky Linux:10libgcrypt0:1.11.0-7.el10_2RLSA-2026:50144
Rocky Linux:8libgcrypt0:1.8.5-8.el8_10RLSA-2026:47117
Rocky Linux:9libgcrypt0:1.10.0-13.el9_8RLSA-2026:50147
Ubuntu:22.04:LTSlibgcrypt201.9.4-3ubuntu3.2USN-8319-1
Ubuntu:22.04:LTSlibgcrypt201.9.4-3ubuntu3.2UBUNTU-CVE-2026-41989
Ubuntu:24.04:LTSlibgcrypt201.10.3-2ubuntu0.1USN-8319-1
Ubuntu:24.04:LTSlibgcrypt201.10.3-2ubuntu0.1UBUNTU-CVE-2026-41989
Ubuntu:25.10libgcrypt201.11.0-7ubuntu0.1USN-8319-1
Ubuntu:25.10libgcrypt201.11.0-7ubuntu0.1UBUNTU-CVE-2026-41989
Ubuntu:26.04:LTSlibgcrypt201.12.0-2ubuntu0.1UBUNTU-CVE-2026-41989
Ubuntu:26.04:LTSlibgcrypt201.12.0-2ubuntu0.1USN-8319-1

Affected products (as reported)

VendorProductVersions
gnupg Libgcrypt 1.8.8 – before 1.10.41.11.0 – before 1.11.31.12.0 – before 1.12.2

Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H

References