Vulnerability Report: GO-2025-4193
- CVE-2025-66506, GHSA-f83f-xpx7-ffpw
- Affects: github.com/sigstore/fulcio
- Published: Dec 08, 2025
Fulcio allocates excessive memory during token parsing in github.com/sigstore/fulcio
For detailed information about this vulnerability, visit https://github.com/sigstore/fulcio/security/advisories/GHSA-f83f-xpx7-ffpw or https://nvd.nist.gov/vuln/detail/CVE-2025-66506.
Affected Packages
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PathVersionsSymbols
Aliases
References
- https://github.com/sigstore/fulcio/security/advisories/GHSA-f83f-xpx7-ffpw
- https://nvd.nist.gov/vuln/detail/CVE-2025-66506
- https://github.com/sigstore/fulcio/commit/765a0e57608b9ef390e1eeeea8595b9054c63a5a
- https://vuln.go.dev/ID/GO-2025-4193.json
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