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CNVD-2026-26085

Vulnerability from cnvd - Published: 2026-06-29

Title

Apache Kerby Kerberos预认证绕过漏洞

Description

Apache Kerby是一个Kerberos协议的Java实现库，主要用于提供认证和授权服务。 Apache Kerby存在Kerberos预认证绕过漏洞。该漏洞源于当用户发送包含未识别或不受支持类型的PA-DATA时，未能正确进行预认证检查，攻击者可利用该漏洞绕过Kerberos预认证机制。

Severity

高

Patch Name

Apache Kerby Kerberos预认证绕过漏洞的补丁

Patch Description

Apache Kerby是一个Kerberos协议的Java实现库，主要用于提供认证和授权服务。 Apache Kerby存在Kerberos预认证绕过漏洞。该漏洞源于当用户发送包含未识别或不受支持类型的PA-DATA时，未能正确进行预认证检查，攻击者可利用该漏洞绕过Kerberos预认证机制。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://lists.apache.org/thread/1y3glgh3kzwoxo5m2lq504cjlh1dsrfh

Reference

https://nvd.nist.gov/vuln/detail/CVE-2026-57915

Impacted products

Name
Apache Apache Kerby <2.1.2

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      "cveNumber": "CVE-2026-57915",
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  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://lists.apache.org/thread/1y3glgh3kzwoxo5m2lq504cjlh1dsrfh",
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  "number": "CNVD-2026-26085",
  "openTime": "2026-06-29",
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  "patchName": "Apache Kerby Kerberos\u9884\u8ba4\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
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  "serverity": "\u9ad8",
  "submitTime": "2026-06-27",
  "title": "Apache Kerby Kerberos\u9884\u8ba4\u8bc1\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2026-57915 (GCVE-0-2026-57915)

Vulnerability from cvelistv5 – Published: 2026-06-26 12:09 – Updated: 2026-08-03 12:05

Title

Apache Kerby: Kerberos Pre-Authentication Bypass

Summary

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.

Severity

7.3 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-26 14:38 UTC

CWE

CWE-304 - Missing Critical Step in Authentication
CWE-358 - Improperly Implemented Security Check for Standard

Assigner

apache mitre root

References

5 references

URL	Tags
https://lists.apache.org/thread/1y3glgh3kzwoxo5m2…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/06/26/8
https://access.redhat.com/security/cve/CVE-2026-57915	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2493407	issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v…	x_sadp-csaf-vex

Impacted products

7 products

Vendor	Product	Version
Apache Software Foundation	Apache Kerby	Affected: 0 , < 2.1.2 (semver)
Red Hat	Red Hat AMQ Clients	cpe:/a:redhat:amq_clients:2023
Red Hat	Red Hat Data Grid 8	cpe:/a:redhat:jboss_data_grid:8
Red Hat	Red Hat Fuse 7	cpe:/a:redhat:jboss_fuse:7
Red Hat	Red Hat JBoss Enterprise Application Platform Expansion Pack	cpe:/a:redhat:jbosseapxp
Red Hat	streams for Apache Kafka 2	cpe:/a:redhat:amq_streams:2
Red Hat	streams for Apache Kafka 3	cpe:/a:redhat:amq_streams:3

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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CNVD-2026-26085

CVE-2026-57915 (GCVE-0-2026-57915)

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