Vulnerability · Published Jun 1, 2026 · Assigned by VulnCheck

CVE-2026-49134CodexBar < 0.32.0 Privilege Escalation via CLI Installer Temp File

High 7.1

In plain English

A high-severity security flaw in CodexBar from steipete. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).

Severity (CVSS 3.1)7.1High

Exploit odds (30 days)0.3%top 80.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
steipete	CodexBar	0 – before 0.32.0

Weakness: CWE-377 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

References

https://github.com/steipete/CodexBar/releases/tag/v0.32.0 release-notes
https://github.com/steipete/CodexBar/pull/1222 issue-tracking
https://github.com/steipete/CodexBar/commit/dbc944d46cd4cf7877d1ca47c44556fe573b46e8 patch
https://www.vulncheck.com/advisories/codexbar-privilege-escalation-via-cli-installer-temp-file third-party-advisory