CVE-2026-49134
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network with a low-privilege account, but needs a user to act. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-377
- Record status
- Deferred
Attack profile CVSS 4.0 · 7.5
- Attack vector
- Network
- Complexity
- High
- Attack requirements
- None
- Privileges needed
- Low
- User interaction
- Passive
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-49134.md and follow it. Check whether this project is affected by CVE-2026-49134. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/steipete/CodexBar/commit/dbc944d46cd4cf7877d1ca47c44556fe573b46e8
- https://github.com/steipete/CodexBar/pull/1222
- https://github.com/steipete/CodexBar/releases/tag/v0.32.0
- https://github.com/steipete/CodexBar/pull/1222
References
- https://github.com/steipete/CodexBar/commit/dbc944d46cd4cf7877d1ca47c44556fe573b46e8
- https://github.com/steipete/CodexBar/pull/1222
- https://github.com/steipete/CodexBar/releases/tag/v0.32.0
- https://www.vulncheck.com/advisories/codexbar-privilege-escalation-via-cli-installer-temp-file
- https://github.com/steipete/CodexBar/pull/1222