Dashboard / CVE-2026-15554

CVE-2026-15554

HIGH
MEDIUM Priority: 0.04 BB Relevance: 65/100
Published: 2026-08-11 Modified: 2026-11-01 First seen: 2026-11-01 Status: active

Attack Surface

Network No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

the Undertow AJP listener honours forged ssl_cert and is_ssl AJP attributes without requiring any shared-secret authentication. This enables an unauthenticated attacker with direct TCP access to port 8009 to bypass CLIENT-CERT authentication by injecting a forged X.509 certificate via the AJP protocol.

Weakness Classification (1)

References & Advisories (8)

https://access.redhat.com/errata/RHSA-2026:53644
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:53806
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:70228
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:70229
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:70230
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:70277
vendor-advisory x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2480601
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

65 / 100
✓ Network accessible
✓ No authentication
✓ No user interaction

CVSS Score

7.4 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS — Exploitation Probability

0.48%
Raw Score 0.004820
Percentile 41.5%
Date 2026-11-02

EPSS Trend

2026-11-02
0.00482
2026-11-01
0.00482
2026-10-31
0.00568

Intelligence Sources

mitre ref →
nvd ref →

External Links