CVE-2026-56250
CVE-2026-56250 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. The underlying weakness is classified as CWE-862.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v4: 8.7
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-862
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-56250?
- 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.
- How severe is CVE-2026-56250?
- CVE-2026-56250 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2026-56250 being actively exploited?
- It is not currently listed in CISA's Known Exploited Vulnerabilities catalog, and no EPSS exploit-prediction score is available yet.
- How do I fix CVE-2026-56250?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2026-56250 published?
- CVE-2026-56250 was published on 2026-07-08.
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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