CVE-2026-44479
Vercel: Non-interactive mode includes CLI arguments in suggested command output
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Vercel: Non-interactive mode includes CLI arguments in suggested command output
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.
- Record
CVE-2026-44479- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-200, CWE-532
- Updated
- 2026-11-02
EUVDEUVD-2026-30050
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.
- Record
EUVD-2026-30050- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-pgf8-2hgj-grqg
Vercel: Non-interactive mode includes CLI arguments in suggested command output
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:
- Token passed as a CLI argument (
--token/-t). TheVERCEL_TOKENenvironment variable is not affected. - Non-interactive mode is active (explicit flag or AI agent auto-detection).
- 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
--tokenwith--non-interactivein their applications, review logs for exposed tokens and rotate them. - Prefer
VERCEL_TOKENenvironment variable for authentication.
- Record
GHSA-pgf8-2hgj-grqg- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-200, CWE-532
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-44479- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-200, CWE-532
- Updated
- 2026-11-02
OSVGHSA-pgf8-2hgj-grqg
Vercel: Non-interactive mode includes CLI arguments in suggested command output
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:
- Token passed as a CLI argument (
--token/-t). TheVERCEL_TOKENenvironment variable is not affected. - Non-interactive mode is active (explicit flag or AI agent auto-detection).
- 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
--tokenwith--non-interactivein their applications, review logs for exposed tokens and rotate them. - Prefer
VERCEL_TOKENenvironment variable for authentication.
- Record
GHSA-pgf8-2hgj-grqg- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-200, CWE-532
- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-44479 is a medium vulnerability (CVSS 5.5) in Vercel, published May 7, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.16%, the 5th percentile. Fixed in vercel 52.0.1.