CVE-2026-48721 Warp: Env-var prefixes can lead to denylisted command autoexecution
Attackers can bypass command denylists in Warp's CLI agent by using environment variable prefixes, leading to unauthorized command execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-48721?
CVE-2026-48721 is a high-severity vulnerability in warpdotdev warp, published on 24 Jun 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Warp is an agentic development environment. From 0.2025.10.08.08.12.stable_00 until 0.2026.05.06.15.42.stable_01, Warp contains a command execution permission-check bypass in the default unsandboxed CLI agent profile. The CLI profile is non-interactive and relies on a command denylist as a safety boundary for commands that should require confirmation. Because command strings were checked before canonicalizing leading environment-variable assignments, an attacker who can influence the agent's command output may cause denylisted commands to be treated as non-denylisted. This vulnerability is fixed in 0.2026.05.06.15.42.stable_01.
Which versions are affected by CVE-2026-48721?
How do I fix CVE-2026-48721?
No fix has been published for CVE-2026-48721 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-48721 being exploited?
There is no known exploitation of CVE-2026-48721 in the wild and no public exploit code.
Sources
Also known as GHSA-3839-h8jj-ph82.