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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.

PUBLISHED Reserved 2026-06-26 | Published 2026-06-26 | Updated 2026-06-26 | Assigner apache

Problem types

CWE-304 Missing Critical Step in Authentication

Product status

Default status
unaffected

Any version before 2.1.2
affected

References

www.openwall.com/lists/oss-security/2026/06/26/8

lists.apache.org/thread/1y3glgh3kzwoxo5m2lq504cjlh1dsrfh vendor-advisory

cve.org (CVE-2026-57915)

nvd.nist.gov (CVE-2026-57915)

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