CVE-2026-42010
Published: May 7, 2026
Modified: Jun 2, 2026
CVSS v3.1
7.1
Description
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.
| Vendor | Product | Versions |
|---|---|---|
Red Hat | Red Hat Enterprise Linux 10 | unaffected 0:3.8.10-4.el10_2 - < * |
Red Hat | Red Hat Enterprise Linux 8 | unaffected 0:3.6.16-8.el8_10.6 - < * |
Red Hat | Red Hat Enterprise Linux 8 | unaffected 0:3.6.16-8.el8_10.6 - < * |
Red Hat | Red Hat Enterprise Linux 9 | unaffected 0:3.8.10-4.el9_8 - < * |
Red Hat | Red Hat Enterprise Linux 9 | unaffected 0:3.8.10-4.el9_8 - < * |
Red Hat | Red Hat Hardened Images | unaffected 3.8.13-1.hum1 - < * |
Red Hat | Red Hat Enterprise Linux 6 | All versions |
Red Hat | Red Hat Enterprise Linux 7 | All versions |
Red Hat | Red Hat OpenShift Container Platform 4 | All versions |
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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