PatchSiren cyber security CVE debrief
CVE-2026-44479 vercel CVE debrief
A medium-severity vulnerability, CVE-2026-44479, was discovered in Vercel's AI Cloud platform. The issue affects versions 50.16.0 to 52.0.0 of the Vercel CLI. When running in non-interactive mode, 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. This could lead to the plaintext token being captured in CI/CD logs, agent transcripts, or other automation output.
- Vendor
- vercel
- Product
- Unknown
- CVSS
- MEDIUM 5.5
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-05-13
- Original CVE updated
- 2026-06-04
- Advisory published
- 2026-05-13
- Advisory updated
- 2026-06-04
Who should care
Users of Vercel's AI Cloud platform, particularly those who use the Vercel CLI in non-interactive mode or automated environments, should be aware of this vulnerability. Developers and administrators who handle sensitive authentication tokens are at risk if they use affected versions of the Vercel CLI.
Technical summary
The vulnerability exists in the Vercel CLI versions 50.16.0 to 52.0.0. When the CLI runs in non-interactive mode and encounters a command that cannot complete autonomously, it emits JSON payloads with suggested follow-up commands. If the user has authenticated using the --token or -t option, the token is included in these suggestions. The CVSS score for this vulnerability is 5.5, indicating a medium severity level.
Defensive priority
Medium
Recommended defensive actions
- Upgrade to version 52.0.1 or later of the Vercel CLI to fix the vulnerability.
- Avoid using --token or -t options in non-interactive modes or automated environments.
- Review CI/CD logs, agent transcripts, and automation output for potential token exposure.
Evidence notes
The vulnerability was reported via a security advisory on GitHub (resourceLinkAnnotations: ref-4).
Official resources
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CVE-2026-44479 CVE record
CVE.org
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CVE-2026-44479 NVD detail
NVD
-
Source item URL
nvd_modified
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Mitigation or vendor reference
[email protected] - Mitigation, Vendor Advisory
CVE-2026-44479 was published on 2026-05-13T16:16:58.400Z and modified on 2026-06-04T14:30:35.523Z.