CVE-2026-57915CWE-304CWE-358

CVE-2026-57915

High · published June 26, 2026

CVSS v3.1

7.3

EPSS

Percentile

43.7

In the wild

Unconfirmed

What it is

It is possible to bypass the Kerberos pre-authentication check in Apache Kerby by sending a PA-DATA with an unrecognized or unsupported type. Users are recommended to upgrade to version 2.1.2, which fixes this issue.

The record

Technical detail

CVSS v3.1: 7.3 · HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0: Not supplied
EPSS: 0.00526 · 43.7th percentile
Weaknesses: CWE-304 · Missing Critical Step in Authentication; CWE-358 · Improperly Implemented Security Check for Standard
Published: 2026-06-26T17:16Z

References (5)

https://lists.apache.org/thread/1y3glgh3kzwoxo5m2lq504cjlh1dsrfh · [email protected]http://www.openwall.com/lists/oss-security/2026/06/26/8 · af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/security/cve/CVE-2026-57915 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://bugzilla.redhat.com/show_bug.cgi?id=2493407 · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-57915.json · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

EPSS history

Timeline

26 JUN 12:09Z
Apache Kerby: Kerberos Pre-Authentication Bypass
cvelistv5