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  4. CVE 2026 18047 dogtag pki pki core redhat pki pki acme admin
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Back to active CVEs
Medium · CVSS 6.5CVE-2026-18047

Dogtag-pki: pki-core: redhat-pki: pki: acme admin enable/disable endpoint authentication bypass via trailing slashCVE-2026-18047

Answer in brief

CVE-2026-18047 records a Medium severity (CVSS 6.5) vulnerability in Dogtag-pki: pki-core: redhat-pki: pki: acme admin enable/disable endpoint authentication bypass via trailing slash. The current sources do not mark it as known exploited. The current feed maps Red Hat/dogtag-pki (generic), Red Hat/pki-core (generic), Red Hat/pki-core:10.6/pki-core (generic), Red Hat/redhat-pki (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 28, 2026Updated Nov 5, 2026Source checked Nov 5, 2026First seen by HOL Nov 5, 2026Material review Nov 5, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.5
Exploitation
Not marked as known exploited
Affected software
5 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 6.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Red Hat/dogtag-pki (generic), Red Hat/pki-core (generic), Red Hat/pki-core:10.6/pki-core (generic), Red Hat/redhat-pki (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Red Hat/dogtag-pkigeneric*Not reported
Red Hat/pki-coregeneric*Not reported
Red Hat/pki-core:10.6/pki-coregeneric*Not reported
Red Hat/redhat-pkigeneric*Not reported
Red Hat/redhat-pki:10/redhat-pkigeneric*Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Red Hat/dogtag-pki, Red Hat/pki-core, Red Hat/pki-core:10.6/pki-core.
  2. 2Review the reported fix. Source-reported workaround: To mitigate this vulnerability, change the URL patterns in the ACME responder's web.xml from exact-match to prefix-match. Edit the file /usr/share/pki/acme/webapps/acme/WEB-INF/web.xml and replace the url-pattern entries for the enable and disable endpoints: <url-pattern>/enable</url-pattern> -> <url-pattern>/enable/*</url-pattern> <url-pattern>/disable</url-pattern> -> <url-pattern>/disable/*</url-pattern> Then restart the PKI server for the changes to take effect.

Evidence timeline and material changes

  1. Published upstream

    Jul 28, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 5, 2026

Sources and claim methodology

  • Source referenceaccess.redhat.com
  • Source referencebugzilla.redhat.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-288
Source
CVE List V5
Source checked
Nov 5, 2026
References
2 linked sources
Open source record