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Vulnerability · Published May 17, 2026 · Assigned by VulDB

CVE-2026-8767vercel ai PR Branch Name Interpolation prettier-on-automerge.yml run os command injection

Medium 5.0

In plain English

A medium-severity OS command injection in ai from vercel. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 7.0% (higher than 94% of all known vulnerabilities).

Severity (CVSS 3.1)5.0Medium
Exploit odds (30 days)7.0%top 5.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability has been found in vercel ai up to 3.0.97. Impacted is the function run of the file .github/workflows/prettier-on-automerge.yml of the component PR Branch Name Interpolation. The manipulation leads to os command injection. The attack can be initiated remotely. The complexity of an attack is rather high. The exploitability is considered difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

VendorProductVersions
vercel ai 3.0.03.0.13.0.23.0.33.0.43.0.53.0.63.0.7

Weakness: CWE-78, CWE-77 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References