CVE-2026-11873

MEDIUM
MEDIUM Priority: 0.03 BB Relevance: 73/100
Published: 2026-09-01 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: Low
I: None
A: Low

Description

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.

References & Advisories (2)

https://bugzilla.redhat.com/show_bug.cgi?id=2487505
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

73 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

EPSS — Exploitation Probability

0.46%
Raw Score 0.004560
Percentile 40.2%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00456
2026-11-13
0.00456
2026-11-12
0.00456
2026-11-10
0.00456
2026-11-09
0.00456
2026-11-08
0.00456
2026-11-07
0.00456
2026-11-06
0.00456
2026-11-05
0.00456

Intelligence Sources

mitre ref →
nvd ref →