CVE-2026-57915: Missing Critical Step in Authentication

June 26, 2026 (updated August 3, 2026)

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

access.redhat.com/security/cve/CVE-2026-57915
bugzilla.redhat.com/show_bug.cgi?id=2493407
lists.apache.org/thread/1y3glgh3kzwoxo5m2lq504cjlh1dsrfh
nvd.nist.gov/vuln/detail/CVE-2026-57915
security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-57915.json

Code Behaviors & Features

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