@payloadcms/storage-vercel-blob has access control bypass of uploads in Vercel Storage adapter
CVE-2026-93363
@payloadcms/storage-vercel-blob has access control bypass of uploads in Vercel Storage adapter
Assessment
- CVSS
- 5.3 (v4.0)
- Severity
- Medium
- EPSS
- 0.18% chance of exploitation in the next 30 days
- Known exploited
- Not listed in CISA KEV
- Exploit availability
- Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
- Published
- 4 November 2026
- Last updated
- 4 November 2026
- Affected
- payloadcms · payload
- Assigner
- VulnCheck
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
At the source
References
- https://github.com/payloadcms/payload/security/advisories/GHSA-mc8m-rr6c-r5qr
- https://www.vulncheck.com/advisories/payload-cms-storage-vercel-blob-adapter-improper-access-control-on-upload-route
- https://nvd.nist.gov/vuln/detail/CVE-2026-93363
- https://github.com/payloadcms/payload/commit/47abe9bb5c444330dbfaa9a5bc2033337932270b
- https://github.com/payloadcms/payload/releases/tag/v3.90.0
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