Vulnerability Description
Capgo before 12.128.2 contains a security control bypass vulnerability where the PostgREST/RLS plane accepts plaintext API keys through the capgkey header despite enforce_hashed_api_keys being enabled. Attackers can bypass org-level hashed-key enforcement by sending plaintext API keys directly to the PostgREST/RLS plane to access protected resources.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/Cap-go/capgo/security/advisories/GHSA-6g74-8cpq-g2c8
- https://www.vulncheck.com/advisories/capgo-hashed-api-key-enforcement-bypass-via
- https://github.com/Cap-go/capgo/security/advisories/GHSA-6g74-8cpq-g2c8
FAQ
What is CVE-2026-56243?
CVE-2026-56243 is a vulnerability with a CVSS score of 8.1 (HIGH). Capgo before 12.128.2 contains a security control bypass vulnerability where the PostgREST/RLS plane accepts plaintext API keys through the capgkey header despite enforce_hashed_api_keys being enabled...
How severe is CVE-2026-56243?
CVE-2026-56243 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-56243?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.