CVE-2026-41054
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**.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.18% probability · 8th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-305
- Source
- meissner@suse.de
References
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.