What’s Vulnerable › Vulnerabilities

CVE-2026-56250: Capgo - Arbitrary R2 Object Deletion via Mutable r2_path in app_versions

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-08 · updated 2026-07-08
• Weakness: CWE-862

Description

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 products

• Capgo: before 12.128.2 — fixed in 12.128.2

How to fix

Upgrade to a fixed version: Capgo 12.128.2. Check the vendor advisory for mitigations.

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

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