CVE-2026-100615: Cap-go capgo.app before 12.267.1 Privilege Escalation via API Key Rotation

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-26 · updated 2026-09-28
Weakness: CWE-269

Description

Cap-go capgo.app before 12.267.1 fails to validate target API key privilege during rotation, allowing an apikey_manager to rotate a higher-privileged org_super_admin sibling key and recover its plaintext credential. Attackers with apikey_manager role can enumerate same-owner API keys, rotate a stronger sibling through the PUT endpoint, and obtain the replacement plaintext secret to authenticate as the higher-privileged principal.

Affected products

Cap-go capgo.app: before 12.267.1 — fixed in 12.267.1

How to fix

Upgrade to a fixed version: Cap-go capgo.app 12.267.1. Check the vendor advisory for mitigations.

References

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