CVE-2026-49134 CodexBar < 0.32.0 Privilege Escalation via CLI Installer Temp File
Local attackers can exploit a race condition in the CodexBar CLI installer to execute arbitrary commands as root by rewriting temporary files.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-49134?
CVE-2026-49134 is a high-severity vulnerability in steipete CodexBar, published on 1 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
CodexBar prior to 0.32.0 contains a privilege escalation vulnerability in the CLI installer that allows local attackers to execute arbitrary commands as root by exploiting a race condition in temporary file handling. The installer creates a temporary file with mktemp, writes a privileged shell payload into it, and executes it with administrator privileges via bash, allowing a same-user local process to rewrite the installer body before the administrator prompt is approved, causing attacker-controlled commands to run as root.
Weakness: CWE-377
Which versions are affected by CVE-2026-49134?
How do I fix CVE-2026-49134?
No fix has been published for CVE-2026-49134 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-49134 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-49134 exists.
Sources
Also known as GHSA-gg57-wg6f-c8vg.