Status: UPDATED | Advisory ID: CVE-2026-42010
| CVE | CVE-2026-42010 |
| CVSS Score / Version | 7.1 (High) / CVSS v3.1 |
| Updated | 2026-10-02 |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |
| CVSS Prose | attack vector is network; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is low; availability impact is none. |
| Affected products | see table below |
| Classified as | CWE-170 (Improper Null Termination) |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Red Hat | Enterprise Linux | ||
| Red Hat | OpenShift Container Platform | ||
| Red Hat | hardened_images | ||
| Red Hat | Red Hat OpenShift AI 3.4 | ||
| Red Hat | Red Hat Enterprise Linux 10 | ||
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | ||
| Red Hat | Red Hat Enterprise Linux 8 | ||
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | ||
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | ||
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | ||
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | ||
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | ||
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | ||
| Red Hat | Red Hat Enterprise Linux 9 | ||
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | ||
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | ||
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | ||
| Red Hat | Red Hat Update Infrastructure 5 | ||
| Red Hat | Red Hat Hardened Images | ||
| Red Hat | Red Hat OpenShift Container Platform 4.12 | ||
| Red Hat | Red Hat OpenShift Container Platform 4.13 | ||
| Red Hat | Red Hat OpenShift Container Platform 4.14 | ||
| Red Hat | Red Hat OpenShift Container Platform 4.15 | ||
| Red Hat | Red Hat OpenShift Container Platform 4.16 | ||
| Red Hat | Red Hat OpenShift Container Platform 4.17 | ||
| Red Hat | Red Hat OpenShift Container Platform 4.18 | ||
| Red Hat | Red Hat OpenShift Container Platform 4.19 | ||
| Red Hat | Red Hat OpenShift Container Platform 4 | ||
| Red Hat | Red Hat OpenShift Container Platform 4.20 | ||
| Red Hat | Red Hat OpenShift Container Platform 4.21 | ||
| Red Hat | Red Hat OpenShift Container Platform 4.22 | ||
| gnu | gnutls | ||
| Red Hat | Cert Manager support for Red Hat OpenShift release 1.20 | ||
| Red Hat | Red Hat AI Inference Server 3.2 | ||
| Red Hat | Red Hat Discovery 2 |
| Subsystems | Core Infrastructure, EWS Workstation Delivery/Virtualization |
| Sectors | All Sectors |
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. (NVD)
Monitor Red Hat's and gnu's web pages for any future patch releases. See vendor advisory link below.
| Source | Reference |
|---|---|
| NVD | https://nvd.nist.gov/vuln/detail/CVE-2026-42010 |
| CVE | https://www.cve.org/CVERecord?id=CVE-2026-42010 |
| Vendor advisory | https://access.redhat.com/security/cve/CVE-2026-42010 |