CVE-2026-41054
HIGHCVSS 7.8/10EPSS 0.18%
Last modified
CVE-2026-41054 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In `src/havegecmd.c`, the `socket_handler` function performs a credential check on the abstract UNIX socket (`\0/sys/entropy/haveged`). However, while it detects if the connecting user is not root (`cred.uid != 0`) and prepares a negative acknowledgement (`ASCII_NAK`), it **fails to stop execution**. EPSS estimates a 0.18% chance of exploitation in the next 30 days.
Description
In `src/havegecmd.c`, the `socket_handler` function performs a credential check on the abstract UNIX socket (`\0/sys/entropy/haveged`). However, while it detects if the connecting user is not root (`cred.uid != 0`) and prepares a negative acknowledgement (`ASCII_NAK`), it **fails to stop execution**. The code proceeds to the `switch` statement, allowing any local unprivileged user to execute privileged commands such as `MAGIC_CHROOT`.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| SUSE | Container suse/sle-micro-rancher/5.3:latest | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | Container suse/sle-micro-rancher/5.4:latest | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | Container suse/sle-micro/5.5:latest | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | Image SLES15-SP4-SAP-BYOS | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | Image SLES15-SP4-SAP-BYOS-Azure | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | Image SLES15-SP4-SAP-BYOS-EC2 | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | Image SLES15-SP4-SAP-BYOS-GCE | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | Image SLES15-SP4-SAP-Hardened | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | Image SLES15-SP4-SAP-Hardened-BYOS | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | Image SLES15-SP4-SAP-Hardened-BYOS-Azure | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | Image SLES15-SP4-SAP-Hardened-BYOS-EC2 | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | Image SLES15-SP4-SAP-Hardened-BYOS-GCE | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | Image SLES15-SP4-SAP-Hardened-GCE | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | SUSE Linux Enterprise Desktop 15 SP7 | >= ?, < 1.9.14-150600.11.6.1 |
| SUSE | SUSE Linux Enterprise High Performance Computing 15 SP7 | >= ?, < 1.9.14-150600.11.6.1 |
| SUSE | SUSE Linux Enterprise Module for Basesystem 15 SP7 | >= ?, < 1.9.14-150600.11.6.1 |
| SUSE | SUSE Linux Enterprise Server 15 SP7 | >= ?, < 1.9.14-150600.11.6.1 |
| SUSE | SUSE Linux Enterprise Server for SAP Applications 15 SP7 | >= ?, < 1.9.14-150600.11.6.1 |
| SUSE | SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | SUSE Linux Enterprise Micro 5.3 | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | SUSE Linux Enterprise Micro 5.4 | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | SUSE Linux Enterprise Micro 5.5 | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | SUSE Linux Enterprise Server 15 SP4-LTSS | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | SUSE Linux Enterprise Server 15 SP5-LTSS | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | SUSE Linux Enterprise Server 15 SP6-LTSS | >= ?, < 1.9.14-150600.11.6.1 |
| SUSE | SUSE Linux Enterprise Server for SAP Applications 15 SP4 | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | SUSE Linux Enterprise Server for SAP Applications 15 SP5 | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | SUSE Linux Enterprise Server for SAP Applications 15 SP6 | >= ?, < 1.9.14-150600.11.6.1 |
| SUSE | SUSE Manager Proxy LTS 4.3 | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | SUSE Manager Retail Branch Server LTS 4.3 | >= ?, < 1.9.14-150400.3.11.1 |
| SUSE | SUSE Manager Server LTS 4.3 | >= ?, < 1.9.14-150400.3.11.1 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-41054?
In `src/havegecmd.c`, the `socket_handler` function performs a credential check on the abstract UNIX socket (`\0/sys/entropy/haveged`). However, while it detects if the connecting user is not root (`cred.uid != 0`) and prepares a negative acknowledgement (`ASCII_NAK`), it **fails to stop execution**. The code proceeds to the `switch` statement, allowing any local unprivileged user to execute privileged commands such as `MAGIC_CHROOT`.
How severe is CVE-2026-41054?
CVE-2026-41054 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2026-41054?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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