CVE-2026-8767

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

Published May 17, 2026 CVSS 4.0 · 2.3 Low EPSS 7.0% KEV · Not listed

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

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

vercel

affected

Version	Status	Constraints
`3.0.0`	affected	—
`3.0.1`	affected	—
`3.0.2`	affected	—
`3.0.3`	affected	—
`3.0.4`	affected	—
`3.0.5`	affected	—
`3.0.6`	affected	—
`3.0.7`	affected	—
`3.0.8`	affected	—
`3.0.9`	affected	—
`3.0.10`	affected	—
`3.0.11`	affected	—
`3.0.12`	affected	—
`3.0.13`	affected	—
`3.0.14`	affected	—
`3.0.15`	affected	—
`3.0.16`	affected	—
`3.0.17`	affected	—
`3.0.18`	affected	—
`3.0.19`	affected	—
`3.0.20`	affected	—
`3.0.21`	affected	—
`3.0.22`	affected	—
`3.0.23`	affected	—
`3.0.24`	affected	—
`3.0.25`	affected	—
`3.0.26`	affected	—
`3.0.27`	affected	—
`3.0.28`	affected	—
`3.0.29`	affected	—
`3.0.30`	affected	—
`3.0.31`	affected	—
`3.0.32`	affected	—
`3.0.33`	affected	—
`3.0.34`	affected	—
`3.0.35`	affected	—
`3.0.36`	affected	—
`3.0.37`	affected	—
`3.0.38`	affected	—
`3.0.39`	affected	—
`3.0.40`	affected	—
`3.0.41`	affected	—
`3.0.42`	affected	—
`3.0.43`	affected	—
`3.0.44`	affected	—
`3.0.45`	affected	—
`3.0.46`	affected	—
`3.0.47`	affected	—
`3.0.48`	affected	—
`3.0.49`	affected	—
`3.0.50`	affected	—
`3.0.51`	affected	—
`3.0.52`	affected	—
`3.0.53`	affected	—
`3.0.54`	affected	—
`3.0.55`	affected	—
`3.0.56`	affected	—
`3.0.57`	affected	—
`3.0.58`	affected	—
`3.0.59`	affected	—
`3.0.60`	affected	—
`3.0.61`	affected	—
`3.0.62`	affected	—
`3.0.63`	affected	—
`3.0.64`	affected	—
`3.0.65`	affected	—
`3.0.66`	affected	—
`3.0.67`	affected	—
`3.0.68`	affected	—
`3.0.69`	affected	—
`3.0.70`	affected	—
`3.0.71`	affected	—
`3.0.72`	affected	—
`3.0.73`	affected	—
`3.0.74`	affected	—
`3.0.75`	affected	—
`3.0.76`	affected	—
`3.0.77`	affected	—
`3.0.78`	affected	—
`3.0.79`	affected	—
`3.0.80`	affected	—
`3.0.81`	affected	—
`3.0.82`	affected	—
`3.0.83`	affected	—
`3.0.84`	affected	—
`3.0.85`	affected	—
`3.0.86`	affected	—
`3.0.87`	affected	—
`3.0.88`	affected	—
`3.0.89`	affected	—
`3.0.90`	affected	—
`3.0.91`	affected	—
`3.0.92`	affected	—
`3.0.93`	affected	—
`3.0.94`	affected	—
`3.0.95`	affected	—
`3.0.96`	affected	—
`3.0.97`	affected	—

Configuration 1 [-]

cpe:2.3:a:vercel:ai:*:*:*:*:*:*:*:*

No data.

Vendor Product Versions

Vercel

Version	Status	Scheme	Platform
`3.0.0`	affected	semver	—
`3.0.1`	affected	semver	—
`3.0.2`	affected	semver	—
`3.0.3`	affected	semver	—
`3.0.4`	affected	semver	—
`3.0.5`	affected	semver	—
`3.0.6`	affected	semver	—
`3.0.7`	affected	semver	—
`3.0.8`	affected	semver	—
`3.0.9`	affected	semver	—
`3.0.10`	affected	semver	—
`3.0.11`	affected	semver	—
`3.0.12`	affected	semver	—
`3.0.13`	affected	semver	—
`3.0.14`	affected	semver	—
`3.0.15`	affected	semver	—
`3.0.16`	affected	semver	—
`3.0.17`	affected	semver	—
`3.0.18`	affected	semver	—
`3.0.19`	affected	semver	—
`3.0.20`	affected	semver	—
`3.0.21`	affected	semver	—
`3.0.22`	affected	semver	—
`3.0.23`	affected	semver	—
`3.0.24`	affected	semver	—
`3.0.25`	affected	semver	—
`3.0.26`	affected	semver	—
`3.0.27`	affected	semver	—
`3.0.28`	affected	semver	—
`3.0.29`	affected	semver	—
`3.0.30`	affected	semver	—
`3.0.31`	affected	semver	—
`3.0.32`	affected	semver	—
`3.0.33`	affected	semver	—
`3.0.34`	affected	semver	—
`3.0.35`	affected	semver	—
`3.0.36`	affected	semver	—
`3.0.37`	affected	semver	—
`3.0.38`	affected	semver	—
`3.0.39`	affected	semver	—
`3.0.40`	affected	semver	—
`3.0.41`	affected	semver	—
`3.0.42`	affected	semver	—
`3.0.43`	affected	semver	—
`3.0.44`	affected	semver	—
`3.0.45`	affected	semver	—
`3.0.46`	affected	semver	—
`3.0.47`	affected	semver	—
`3.0.48`	affected	semver	—
`3.0.49`	affected	semver	—
`3.0.50`	affected	semver	—
`3.0.51`	affected	semver	—
`3.0.52`	affected	semver	—
`3.0.53`	affected	semver	—
`3.0.54`	affected	semver	—
`3.0.55`	affected	semver	—
`3.0.56`	affected	semver	—
`3.0.57`	affected	semver	—
`3.0.58`	affected	semver	—
`3.0.59`	affected	semver	—
`3.0.60`	affected	semver	—
`3.0.61`	affected	semver	—
`3.0.62`	affected	semver	—
`3.0.63`	affected	semver	—
`3.0.64`	affected	semver	—
`3.0.65`	affected	semver	—
`3.0.66`	affected	semver	—
`3.0.67`	affected	semver	—
`3.0.68`	affected	semver	—
`3.0.69`	affected	semver	—
`3.0.70`	affected	semver	—
`3.0.71`	affected	semver	—
`3.0.72`	affected	semver	—
`3.0.73`	affected	semver	—
`3.0.74`	affected	semver	—
`3.0.75`	affected	semver	—
`3.0.76`	affected	semver	—
`3.0.77`	affected	semver	—
`3.0.78`	affected	semver	—
`3.0.79`	affected	semver	—
`3.0.80`	affected	semver	—
`3.0.81`	affected	semver	—
`3.0.82`	affected	semver	—
`3.0.83`	affected	semver	—
`3.0.84`	affected	semver	—
`3.0.85`	affected	semver	—
`3.0.86`	affected	semver	—
`3.0.87`	affected	semver	—
`3.0.88`	affected	semver	—
`3.0.89`	affected	semver	—
`3.0.90`	affected	semver	—
`3.0.91`	affected	semver	—
`3.0.92`	affected	semver	—
`3.0.93`	affected	semver	—
`3.0.94`	affected	semver	—
`3.0.95`	affected	semver	—
`3.0.96`	affected	semver	—
`3.0.97`	affected	semver	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

Attack Vector Network

Attack Complexity High

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity High

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 7.0% (6.966% probability within 30 days)

Exploitation poc

Automatable no

Technical Impact partial

References

Link	Providers
https://gist.github.com/YLChen-007/870bd6966cd84703d91ce54dfea3bdd0
https://vuldb.com/submit/811402
https://vuldb.com/vuln/364392
https://vuldb.com/vuln/364392/cti

History

May 18, 2026 3:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

May 17, 2026 10:45 PM Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
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.
Title		vercel ai PR Branch Name Interpolation prettier-on-automerge.yml run os command injection
First Time appeared		Vercel Vercel ai
Weaknesses		CWE-77 CWE-78
CPEs		cpe:2.3:a:vercel:ai::::::::
Vendors & Products		Vercel Vercel ai
References		https://gist.github.com/YLChen-007/870bd6966cd84703d91ce54dfea3bdd0 https://vuldb.com/submit/811402 https://vuldb.com/vuln/364392 https://vuldb.com/vuln/364392/cti
Metrics		cvssV2_0 `{'score': 4.6, 'vector': 'AV:N/AC:H/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}` cvssV3_0 `{'score': 5, 'vector': 'CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}` cvssV3_1 `{'score': 5, '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'}` cvssV4_0 `{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}`

Subscriptions

Vercel Ai

Weaknesses

Sources

CVE record Updated: May 18, 2026, 2:30 PM

Status: PUBLISHED
Assigner: VulDB
Published: May 17, 2026, 10:30 PM
Updated: May 18, 2026, 2:30 PM
Reserved: May 17, 2026, 9:28 AM

View source JSON

Vulnrichment Updated: May 18, 2026, 2:30 PM

Updated: May 18, 2026, 2:30 PM

JSON

NVD Updated: Oct 14, 2026, 8:10 PM

Status: Analyzed
Published: May 17, 2026, 11:17 PM
Modified: Oct 14, 2026, 8:10 PM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment Updated: Sep 26, 2026, 7:00 AM

Updated: Sep 26, 2026, 7:00 AM

JSON

Affected Products

Remediation

Tracking

Advisories

Metrics

Attack Vector Network

Attack Complexity High

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity High

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

Exploitation poc

Automatable no

Technical Impact partial

Subscriptions

Sources

JSON object

JSON object

JSON object

JSON object

JSON object