CVE-2026-54686
CVE-2026-54686 is a medium-severity vulnerability with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.
Key facts
- Severity: Medium (CVSS 3.x base score 4.3)
- EPSS exploit prediction: 0% (20th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-39013
- Weakness: CWE-78
- Published:
- Last modified:
Description
Warp is an agentic development environment. From 0.2021.04.25.23.05.stable_00 until 0.2026.05.06.15.42.stable_01, Warp accepted certain state-mutating terminal lifecycle hooks from the PTY stream without verifying that the hooks were emitted by Warp's shell integration for the active session. An attacker who could cause a victim to view attacker-controlled terminal output in Warp could spoof selected lifecycle metadata, including the current working directory reported for the active block or SSH session transport metadata. This vulnerability is fixed in 0.2026.05.06.15.42.stable_01.
Frequently asked questions
- What is CVE-2026-54686?
- Warp is an agentic development environment. From 0.2021.04.25.23.05.stable_00 until 0.2026.05.06.15.42.stable_01, Warp accepted certain state-mutating terminal lifecycle hooks from the PTY stream without verifying that the hooks were emitted by Warp's shell integration for the active session. An attacker who could cause a victim to view attacker-controlled terminal output in Warp could spoof selected lifecycle metadata, including the current working directory reported for the active block or SSH session transport metadata. This vulnerability is fixed in 0.2026.05.06.15.42.stable_01.
- How severe is CVE-2026-54686?
- CVE-2026-54686 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.
- Is CVE-2026-54686 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-54686?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-54686 have an EU (EUVD) identifier?
- Yes. CVE-2026-54686 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39013.
- When was CVE-2026-54686 published?
- CVE-2026-54686 was published on 2026-06-24 and last updated on 2026-06-25.
References
- https://github.com/warpdotdev/warp/commit/32d21d15c9a3da1a923d1ed66226cf5cba081d16
- https://github.com/warpdotdev/warp/commit/51bd3267803c5cc0a45074fa19fd50162be7c917
- https://github.com/warpdotdev/warp/security/advisories/GHSA-9w2v-jhww-vm85
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