Cyber Resilience

CVE-2026-57915

High

Published: 26 June 2026

Published
26 June 2026
Modified
26 June 2026
KEV Added
—
Patch
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CVSS Score v3.1 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS Score 0.0026 17.5th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-57915 is a high-severity Missing Critical Step in Authentication (CWE-304) vulnerability in Apache Kerby (inferred from references). Its CVSS base score is 7.3 (High).

Operationally, ranked at the 17.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A07:2025 Authentication Failures

EU & UK References

Vulnerability details

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.

CWE(s)
CWE-304

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

Apache
Kerby
inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

IA-8 Identification and Authentication (Non-organizational Users)
addresses: CWE-304

Ensures the authentication process is followed for non-organizational users, avoiding missing critical steps.

References