CVE-2026-49134
CodexBar < 0.32.0 Privilege Escalation via CLI Installer Temp File
CVSS Score
7.1
EPSS Score
0.1%
EPSS Percentile
18th
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.
| CWE | CWE-377 |
| Vendor | steipete |
| Product | codexbar |
| Published | Jun 1, 2026 |
| Last Updated | Jun 2, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
steipete / CodexBar
0 < 0.32.0
References
github.com: https://github.com/steipete/CodexBar/releases/tag/v0.32.0 github.com: https://github.com/steipete/CodexBar/pull/1222 github.com: https://github.com/steipete/CodexBar/commit/dbc944d46cd4cf7877d1ca47c44556fe573b46e8 vulncheck.com: https://www.vulncheck.com/advisories/codexbar-privilege-escalation-via-cli-installer-temp-file
Credits
Chia Min Jun Lennon