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Vulnerability record · CVE-2026-100615 · published 26 September 2026

CVE-2026-100615: Improper privilege management vulnerability

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.

8.7 CVSS 4.0 High CWE-269 · Improper privilege management Received
8.7CVSS 4.0 base score
—EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
26 Sep 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/Cap-go/capgo.app/security/advisories/GHSA-8h52-44r7-w343
https://www.vulncheck.com/advisories/cap-go-capgo-app-before-12.267.1-privilege-escalation-via-api-key-rotation

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Source: NIST National Vulnerability Database (record CVE-2026-100615), CISA KEV, FIRST EPSS. This page is refreshed as NVD updates the record.