CVE-2026-56250

Summary

Capgo before 12.128.2 allows upload-scoped API keys to modify the mutable app_versions.r2_path field through PostgREST, enabling retargeting to arbitrary R2 bundle objects. Attackers can patch r2_path to point to victim objects, soft-delete the attacker-controlled version, and trigger the on_version_update cleanup function to delete the victim R2 object, causing denial of service and bundle availability disruption.

Affected Software

Weaknesses

• CWE-862: Missing Authorization

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: yes
  • Technical Impact: partial

Additional References

• https://github.com/Cap-go/capgo/security/advisories/GHSA-pw8p-5jg6-cxj3

References

• https://github.com/Cap-go/capgo/security/advisories/GHSA-pw8p-5jg6-cxj3
• https://www.vulncheck.com/advisories/capgo-arbitrary-r2-object-deletion-via-mutable-r2-path-in-app-versions

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