CVE-2026-56300

Capgo - Unauthenticated API Key Validity and Permission Oracle via RPC Functions

CVSS 8.7 HIGHCWE-200

Vexday Risk Score

18Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 8.7EPSS —KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Ciclo de vida

30 jun 2026Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

Capgo before 12.128.2 contains unauthenticated security definer RPC functions get_user_id and get_org_perm_for_apikey that expose API key validity oracles and user UUID disclosure. Unauthenticated attackers using the public API key can validate leaked keys, enumerate users and apps, and determine permission levels, significantly increasing the actionability of compromised credentials.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Productos afectados

Capgo · Capgo

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Referencias

https://github.com/Cap-go/capgo/security/advisories/GHSA-7r6g-whg3-5mm4 https://www.vulncheck.com/advisories/capgo-unauthenticated-api-key-validity-and-permission-oracle-via-rpc-functions