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Vulnerabilities CVE-2026-18047

CVE-2026-18047

Medium
Open
TLP:CLEAR

Dogtag-pki: pki-core: redhat-pki: pki: acme admin enable/disable endpoint authentication bypass via trailing slash

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Description

A flaw was found in Dogtag PKI's ACME responder where the web.xml security constraints use exact URL pattern matching for admin-only enable/disable endpoints. By appending a trailing slash to the URL, an unauthenticated attacker can bypass the Tomcat authentication constraint while RESTEasy still routes the request to the handler, allowing unauthorized toggling of the ACME service state including persistent denial of service.

Details

CVSS Score
6.5
EPSS Score
0.28%

20.6th percentile

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Confidence
90%
Published
Jul 28, 2026
Last Modified
Jul 28, 2026
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