CVE-2026-41054

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`.

PUBLISHED Reserved 2026-04-16 | Published 2026-05-20 | Updated 2026-05-20 | Assigner suse

Problem types

CWE-305: Authentication Bypass by Primary Weakness

Product status

Credits

Dirk Mueller of SUSE finder

References

www.openwall.com/lists/oss-security/2026/05/19/3

www.openwall.com/lists/oss-security/2026/05/19/4

www.openwall.com/lists/oss-security/2026/05/19/5

www.openwall.com/lists/oss-security/2026/05/20/1

bugzilla.suse.com/show_bug.cgi?id=CVE-2026-41054

cve.org (CVE-2026-41054)

nvd.nist.gov (CVE-2026-41054)

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