CVE catalog

CVE-2026-24881

gnupg2: CVE-2026-24881

Severity: High · CVSS 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: Jan 27, 2026, 6:36:56 PM UTC
Source: [NVD] · [CVE record]
EPSS: 1.81% · Oct 25, 2026

In GnuPG before 2.5.17, a crafted CMS (S/MIME) EnvelopedData message carrying an oversized wrapped session key can cause a stack-based buffer overflow in gpg-agent during PKDECRYPT--kem=CMS handling. This can easily be leveraged for denial of service; however, there is also memory corruption that could lead to remote code execution.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	gnupg2	sid	`2.4.9-8`	not affected
Debian	gnupg2	forky	`2.4.9-8`	not affected
Debian	gnupg2	trixie	`2.4.7-21+deb13u1`	not affected
Debian	gnupg2	bookworm	`2.2.40-1.1+deb12u2`	not affected
Opensuse	gpg2	tumbleweed	`2.5.17-1.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	gnupg2	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	gnupg2	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	gnupg2	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	gnupg2	source	bookworm	`Not affected`	unimportant	Not reported	Not reported
Opensuse	gpg2	rpm	tumbleweed	`2.5.17-1.1`	Not reported	OPENSUSE-SU-2026:10112-1	Not reported

OpenFactory catalog packages

[openSUSE Tumbleweed]

[dirmngr]Unknown
Source package: [gpg2]
Details (1)
- 2.5.21-1.2 · x86_64 · tumbleweed
  Unknown · Fixed: 2.5.17-1.1
  Version impact unknown
  dsa · gpg2 · opensuse · tumbleweed
[gpg2-lang]Unknown
Source package: [gpg2]
Details (1)
- 2.5.21-1.2 · noarch · tumbleweed
  Unknown · Fixed: 2.5.17-1.1
  Version impact unknown
  dsa · gpg2 · opensuse · tumbleweed
[gpg2-tpm]Unknown
Source package: [gpg2]
Details (1)
- 2.5.21-1.2 · x86_64 · tumbleweed
  Unknown · Fixed: 2.5.17-1.1
  Version impact unknown
  dsa · gpg2 · opensuse · tumbleweed

[Debian 12 (Bookworm)]

[dirmngr]Not affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
[gnupg]Not affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · all · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
- 2.2.40-1.1+deb12u2 · all · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
[gnupg2]Not affected
Details (2)
- 2.2.40-1.1+deb12u2 · all · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
- 2.2.40-1.1+deb12u2 · all · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
[gnupg-agent]Not affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · all · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
- 2.2.40-1.1+deb12u2 · all · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
[gnupg-l10n]Not affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · all · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
- 2.2.40-1.1+deb12u2 · all · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
[gnupg-utils]Not affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
[gpg]Not affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
[gpg-agent]Not affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
[gpgconf]Not affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
[gpgsm]Not affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
[gpgv]Not affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
[gpgv2]Not affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · all · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
- 2.2.40-1.1+deb12u2 · all · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
[gpgv-static]Not affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
[gpgv-win32]Not affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · all · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
- 2.2.40-1.1+deb12u2 · all · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
[gpg-wks-client]Not affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
[gpg-wks-server]Not affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
[scdaemon]Not affected
Source package: [gnupg2]
Details (2)
- 2.2.40-1.1+deb12u2 · amd64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm
- 2.2.40-1.1+deb12u2 · arm64 · bookworm
  Not affected
  dsa · gnupg2 · debian · bookworm

Next results

Observed: Oct 24, 2026, 1:11:29 AM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]