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GHSA-pgf8-2hgj-grqg

MediumCVSS 5.5 / 10
Published May 7, 2026·Last modified May 7, 2026
Affected Components(0)

No affected components available

Description

Summary

When 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.

Conditions

All three must be true for the token to appear in output:

  1. Token passed as a CLI argument (--token / -t). The VERCEL_TOKEN environment variable is not affected.
  2. Non-interactive mode is active (explicit flag or AI agent auto-detection).
  3. The command cannot complete on its own (e.g. missing --yes, ambiguous scope, API errors). Successful commands produce no suggestion output.

Impact

The plaintext token may be captured in CI/CD logs, agent transcripts, or other automation output.

Remediation

  • Upgrade to the patched version.
  • If developers have previously used --token with --non-interactive in their applications, review logs for exposed tokens and rotate them.
  • Prefer VERCEL_TOKEN environment variable for authentication.
Risk Scores
Base Score
5.5

The vulnerability requires local access to the device to be exploited. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. The attacker needs the user to perform some action, like clicking a link. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information.

Threat Intelligence
5.1

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
N/A

Probability that this vulnerability will be exploited in the wild within the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

Related Vulnerabilities
  • CVE-2026-44479
    Alias
  • EUVD-2026-30050
    Alias

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Medium severity
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