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Fencer Vulns
medium 6.5

CVE-2026-11873 json

Pki-core: dogtag-pki: empty request to dogtag /ca/rest/certrequests causes http 500, java exception, and stacktrace disclosure

published 2026-09-01 2 mo ago modified 2026-11-05 3 d ago also EUVD-2026-69037

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 39%
public exploits
0
none known

Summary

An Apache-proxied Dogtag CA REST endpoint exposed by IdM (POST /ca/rest/certrequests) returns HTTP 500 with internal Java stack traces for unauthenticated malformed requests. The same unauthenticated error path emits large multi-line stack traces into the CA debug log, creating a log-amplification resource exhaustion vector (disk growth and I/O contention) without requiring authentication.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-11873 updated cvss 6.5

pki-core: dogtag-pki: empty request to Dogtag /ca/rest/certrequests causes HTTP 500, java exception, and stacktrace disclosure

  • Red Hat Certificate System 9 pki-core 10.5.18-32.el7pki
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Enterprise Linux 6 pki-ca, pki-util, pki-setup, pki-common, pki-silent, pki-symkey, +7 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 pki-ca, pki-kra, pki-base, pki-tools, pki-server, pki-symkey, +3 more Red Hat Enterprise Linux 8 jss, pki-ca, idm-jss, ldapjdk, pki-kra, pki-acme, +25 more Red Hat Enterprise Linux 9 pki-ca, pki-kra, pki-acme, pki-base, pki-tools, idm-pki-ca, +13 more Red Hat Enterprise Linux 10 dogtag-pki 11.9.0-5.el10
    affected: workaround, no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 mo ago

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Affected products

  • Red Hat Red Hat Certificate System 9
  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9

Classification

Weakness
  • CWE-209 Generation of Error Message Containing Sensitive Information

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.