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Vulnerability record · CVE-2026-41054 · published 20 May 2026

CVE-2026-41054: In `src/havegecmd.c`, the `socket_handler` function performs a credential check on the abstract UNIX socket (`…

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`.

7.8 CVSS 3.1 High EPSS 0.17% · top 94.8% CWE-305 · CWE-305 Awaiting Analysis
7.8CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
8References
24 Jul 2026Last modified by NVD

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`.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-41054
http://www.openwall.com/lists/oss-security/2026/05/19/3
http://www.openwall.com/lists/oss-security/2026/05/19/4
http://www.openwall.com/lists/oss-security/2026/05/19/5
http://www.openwall.com/lists/oss-security/2026/05/20/1
http://www.openwall.com/lists/oss-security/2026/05/21/17
http://www.openwall.com/lists/oss-security/2026/05/22/1
https://lists.debian.org/debian-lts-announce/2026/06/msg00005.html

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Source: NIST National Vulnerability Database (record CVE-2026-41054), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.