CVE-2026-104988
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Summary
A flaw was found in Dogtag PKI (pki-core). The CMCAuthForEST authentication plugin fails open when an EST fullcmc enrollment request is submitted via BasicAuth without an end-user TLS client certificate. The SSL_CLIENT_CERT session attribute retains the EST subsystem's agent certificate, which causes downstream authorization checks to treat the request as agent-privileged. An authenticated EST user can exploit this to obtain CA-signed certificates with arbitrary subject names.
Affected Software
| Vendor | Product | Version Range | Status |
|---|
Weaknesses
- CWE-290: Authentication Bypass by Spoofing
Workarounds
Disable basic authentication for all users. This can be done by removing the field "UserPasswords" for the user entries in the EST DS server.
References
- https://access.redhat.com/security/cve/CVE-2026-104988
- https://bugzilla.redhat.com/show_bug.cgi?id=2545316
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