CVE catalog

CVE-2026-1584

Severity: High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Feb 9, 2026, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 1.32% · Oct 25, 2026

A flaw was found in gnutls. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted ClientHello message with an invalid Pre-Shared Key (PSK) binder value during the TLS handshake. This can lead to a NULL pointer dereference, causing the server to crash and resulting in a remote Denial of Service (DoS) condition.

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	gnutls28	sid	`3.8.13-1`	fixed
Debian	gnutls28	forky	`3.8.13-1`	fixed
Debian	gnutls28	trixie	`3.8.9-3+deb13u4`	not affected
Debian	gnutls28	trixie-security	`3.8.9-3+deb13u4`	not affected
Debian	gnutls28	bookworm	`3.7.9-2+deb12u7`	not affected
Debian	gnutls28	bookworm-security	`3.7.9-2+deb12u7`	not affected
Cpe	gnutls	Not reported	Not reported	unknown
Cpe	hardened_images	Not reported	Not reported	unknown
Cpe	gnutls	Not reported	Not reported	unknown
Cpe	hardened_images	Not reported	Not reported	unknown
Alpine	gnutls	3.20	`3.8.12-r0`	fixed
Alpine	gnutls	3.21	`3.8.12-r0`	fixed
Alpine	gnutls	3.22	`3.8.12-r0`	fixed
Alpine	gnutls	3.23	`3.8.12-r0`	fixed
Alpine	gnutls	3.24	`3.8.12-r0`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	gnutls28	source	sid	`3.8.12-1`	not yet assigned	Not reported	Not reported
Debian	gnutls28	source	forky	`3.8.12-1`	not yet assigned	Not reported	Not reported
Debian	gnutls28	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	gnutls28	source	bookworm	`Not affected`	unimportant	Not reported	Not reported
Alpine	gnutls	apk	3.20	`3.8.12-r0`	Not reported	ALPINE-CVE-2026-1584	Not reported
Alpine	gnutls	apk	3.21	`3.8.12-r0`	Not reported	ALPINE-CVE-2026-1584	Not reported
Alpine	gnutls	apk	3.22	`3.8.12-r0`	Not reported	ALPINE-CVE-2026-1584	Not reported
Alpine	gnutls	apk	3.23	`3.8.12-r0`	Not reported	ALPINE-CVE-2026-1584	Not reported
Alpine	gnutls	apk	3.24	`3.8.12-r0`	Not reported	ALPINE-CVE-2026-1584	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[gnutls-bin]Not affected
Source package: [gnutls28]
Details (4)
- 3.7.9-2+deb12u7 · amd64 · bookworm
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · arm64 · bookworm
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · amd64 · bookworm-security
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · arm64 · bookworm-security
  Not affected
  nvd · gnutls28 · debian · bookworm
[gnutls-doc]Not affected
Source package: [gnutls28]
Details (4)
- 3.7.9-2+deb12u7 · all · bookworm
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · all · bookworm
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · all · bookworm-security
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · all · bookworm-security
  Not affected
  nvd · gnutls28 · debian · bookworm
[guile-gnutls]Not affected
Source package: [gnutls28]
Details (4)
- 3.7.9-2+deb12u7 · amd64 · bookworm
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · arm64 · bookworm
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · amd64 · bookworm-security
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · arm64 · bookworm-security
  Not affected
  nvd · gnutls28 · debian · bookworm
[libgnutls28-dev]Not affected
Source package: [gnutls28]
Details (4)
- 3.7.9-2+deb12u7 · amd64 · bookworm
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · arm64 · bookworm
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · amd64 · bookworm-security
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · arm64 · bookworm-security
  Not affected
  nvd · gnutls28 · debian · bookworm
[libgnutls30]Not affected
Source package: [gnutls28]
Details (4)
- 3.7.9-2+deb12u7 · amd64 · bookworm
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · arm64 · bookworm
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · amd64 · bookworm-security
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · arm64 · bookworm-security
  Not affected
  nvd · gnutls28 · debian · bookworm
[libgnutls-dane0]Not affected
Source package: [gnutls28]
Details (4)
- 3.7.9-2+deb12u7 · amd64 · bookworm
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · arm64 · bookworm
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · amd64 · bookworm-security
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · arm64 · bookworm-security
  Not affected
  nvd · gnutls28 · debian · bookworm
[libgnutls-openssl27]Not affected
Source package: [gnutls28]
Details (4)
- 3.7.9-2+deb12u7 · amd64 · bookworm
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · arm64 · bookworm
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · amd64 · bookworm-security
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · arm64 · bookworm-security
  Not affected
  nvd · gnutls28 · debian · bookworm
[libgnutlsxx30]Not affected
Source package: [gnutls28]
Details (4)
- 3.7.9-2+deb12u7 · amd64 · bookworm
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · arm64 · bookworm
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · amd64 · bookworm-security
  Not affected
  nvd · gnutls28 · debian · bookworm
- 3.7.9-2+deb12u7 · arm64 · bookworm-security
  Not affected
  nvd · gnutls28 · debian · bookworm

Observed: Oct 27, 2026, 9:44:27 AM UTC

References

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