DEBIAN-CVE-2026-42010
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-42010
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42010.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-42010
- Upstream
- Published
- 2026-05-07T12:16:17Z
- Modified
- 2026-09-19T22:47:39Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A flaw was found in gnutls. Servers configured with RSA-PSK (Rivest–Shamir–Adleman – Pre-Shared Key) wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could exploit this by sending a specially crafted username, leading to an authentication bypass. This vulnerability allows an attacker to gain unauthorized access by circumventing the authentication process.
- References
Affected packages
Debian:12 / gnutls28
Package
- Name
- gnutls28
- Purl
- pkg:deb/debian/gnutls28?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed3.7.9-2+deb12u7
Debian:13 / gnutls28
Package
- Name
- gnutls28
- Purl
- pkg:deb/debian/gnutls28?arch=source&distro=trixie
Debian:14 / gnutls28
Package
- Name
- gnutls28
- Purl
- pkg:deb/debian/gnutls28?arch=source&distro=forky
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed3.8.13-1