CVE-2026-8767CWE-77CWE-78command-injection

CVE-2026-8767

Medium · published May 18, 2026

CVSS v3.1
5.0
EPSS
7%
Percentile
94.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.0 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.06966 · 94.1th percentile
Weaknesses
CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection'); CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-05-18T03:17Z
Affected products (1)
ProductVersionsFixed in
vercel/ai≤ 3.0.97—
References (4)
https://gist.github.com/YLChen-007/870bd6966cd84703d91ce54dfea3bdd0 · [email protected]https://vuldb.com/submit/811402 · [email protected]https://vuldb.com/vuln/364392 · [email protected]https://vuldb.com/vuln/364392/cti · [email protected]
EPSS history
Timeline
  • 17 MAY 22:30Z
    vercel ai PR Branch Name Interpolation prettier-on-automerge.yml run os command injection
    cvelistv5