Bug 2480051 (CVE-2026-41054)
| Summary: | CVE-2026-41054 haveged: privilege escalation via command socket | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Jiri Hladky <hladky.jiri> |
| Component: | haveged | Assignee: | Jiri Hladky <hladky.jiri> |
| Status: | MODIFIED --- | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | rawhide | CC: | hladky.jiri |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | Bug | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
FEDORA-EPEL-2026-56fb074420 (haveged-1.9.14-2.el8) has been submitted as an update to Fedora EPEL 8. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-56fb074420 FEDORA-EPEL-2026-efe6be3dfa (haveged-1.9.21-1.el9) has been submitted as an update to Fedora EPEL 9. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-efe6be3dfa FEDORA-EPEL-2026-b3a94630f0 (haveged-1.9.21-1.el10_3) has been submitted as an update to Fedora EPEL 10.3. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-b3a94630f0 FEDORA-EPEL-2026-ca77194ac0 (haveged-1.9.21-1.el10_2) has been submitted as an update to Fedora EPEL 10.2. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-ca77194ac0 FEDORA-2026-7fcffd5c31 (haveged-1.9.21-1.fc42) has been submitted as an update to Fedora 42. https://bodhi.fedoraproject.org/updates/FEDORA-2026-7fcffd5c31 FEDORA-2026-12643837bd (haveged-1.9.21-1.fc44) has been submitted as an update to Fedora 44. https://bodhi.fedoraproject.org/updates/FEDORA-2026-12643837bd FEDORA-2026-43e2722e8f (haveged-1.9.21-1.fc43) has been submitted as an update to Fedora 43. https://bodhi.fedoraproject.org/updates/FEDORA-2026-43e2722e8f |
A privilege escalation vulnerability was found in haveged. The socket_handler() function in src/havegecmd.c checks the connecting peer's uid via SO_PEERCRED and sends a NAK response to non-root callers. However, after sending the NAK, execution continued into the command switch instead of returning. This allowed unprivileged local users to send commands (MAGIC_CHROOT, MAGIC_CLOSE) to the root-running daemon via the abstract UNIX socket. Affected: all versions with command socket support (1.9.14+) Upstream fix: https://github.com/jirka-h/haveged/releases/tag/v1.9.21 Fix commit: https://github.com/jirka-h/haveged/commit/3870de0 SUSE bug: https://bugzilla.suse.com/show_bug.cgi?id=1264086 Fixed in: haveged-1.9.21-1 (rawhide, f44, f43, f42, epel9, epel10) Fixed in: haveged-1.9.14-2 (epel8, backported patch)