CVE-2026-57915

High

Description

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.

SeverityHigh

CVSS7.3

Exploit probability—

ProductOrg.apache.kerby:kerb-server

PublishedJun 26, 2026

First seenJun 26, 2026

Weakness typeCWE-304CWE-304

How to fix

Update

org.apache.kerby:kerb-server2.1.2 or later

Vendor advisories

lists.apache.org/thread/1y3glgh3kzwoxo5m2lq504cjlh1dsrfh

Affected products

Product	Affected versions	Fixed in
org.apache.kerby:kerb-serverMaven	v < 2.1.2	2.1.2

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