CVE-2026-56249

Summary

Capgo before 12.128.2 contains an authorization bypass vulnerability in the channel creation endpoint that allows authenticated users to overwrite existing channels by reusing their names. Attackers with app.create_channel permission can exploit a logic mismatch between existence validation and upsert operations to reassign channel ownership and modify critical production channel configurations.

Affected Software

Weaknesses

• CWE-285: Improper Authorization

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

Additional References

• https://github.com/Cap-go/capgo/security/advisories/GHSA-vj24-j594-3wv3

References

• https://github.com/Cap-go/capgo/security/advisories/GHSA-vj24-j594-3wv3
• https://www.vulncheck.com/advisories/capgo-unauthorized-channel-overwrite-and-ownership-takeover-via-post-channel-name-collision

• ←Previous
• Next→