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.
References (5)
Core 5
Core References
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-57915
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2493407
Vendor Advisory vendor-advisory
https://lists.apache.org/thread/1y3glgh3kzwoxo5m2lq504cjlh1dsrfh
Scores
CVSS v3
7.3
EPSS
0.0032
EPSS Percentile
24.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-304
CWE-358
Status
published
Products (1)
Apache Software Foundation/Apache Kerby
< 2.1.2
Published
Jun 26, 2026
Tracked Since
Jun 26, 2026