CVE-2026-44479: Vercel: Non-interactive mode includes CLI arguments in suggested command output

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-13 · updated 2026-06-17
Weakness: CWE-200

Description

Vercel’s AI Cloud is a unified platform for building modern applications. From 50.16.0 to 52.0.0, hen the Vercel CLI runs in non-interactive mode (--non-interactive or auto-detected AI agent), commands that cannot complete autonomously emit JSON payloads with suggested follow-up commands. If the user authenticated via --token or -t on the command line, the token value is included verbatim in those suggestions. The plaintext token may be captured in CI/CD logs, agent transcripts, or other automation output. This vulnerability is fixed in 52.0.1.

Affected products

vercel: from 50.16.0 before 52.0.1 — fixed in 52.0.1

How to fix

Upgrade to a fixed version: vercel 52.0.1. Check the vendor advisory for mitigations.

References

https://github.com/vercel/vercel/security/advisories/GHSA-pgf8-2hgj-grqg

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