Vulnerability-Lookup

CNVD-2026-26205

Vulnerability from cnvd - Published: 2026-07-02

Title

Apache Shiro输入验证错误漏洞（CNVD-2026-26205）

Description

Apache Shiro是美国Apache基金会开源的一个安全权限框架。 Apache Shiro输入验证错误漏洞。该漏洞源于DefaultLdapRealm类中未对RFC 2253特殊字符进行转义，用户输入的用户名直接拼接至LDAP DN模板，攻击者可利用该漏洞绕过身份验证或冒充其他用户。

Severity

高

Patch Name

Apache Shiro输入验证错误漏洞（CNVD-2026-26205）的补丁

Patch Description

Apache Shiro是美国Apache基金会开源的一个安全权限框架。 Apache Shiro输入验证错误漏洞。该漏洞源于DefaultLdapRealm类中未对RFC 2253特殊字符进行转义，用户输入的用户名直接拼接至LDAP DN模板，攻击者可利用该漏洞绕过身份验证或冒充其他用户。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/svszql3od8td7hn6conyj2oq70v53b5s

Reference

https://nvd.nist.gov/vuln/detail/CVE-2026-49268

Impacted products

Name
['Apache Shiro <=2.2.0', 'Apache Shiro 3.0.0-alpha-1']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-49268",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-49268"
    }
  },
  "description": "Apache Shiro\u662f\u7f8e\u56fdApache\u57fa\u91d1\u4f1a\u5f00\u6e90\u7684\u4e00\u4e2a\u5b89\u5168\u6743\u9650\u6846\u67b6\u3002\n\nApache Shiro\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8eDefaultLdapRealm\u7c7b\u4e2d\u672a\u5bf9RFC 2253\u7279\u6b8a\u5b57\u7b26\u8fdb\u884c\u8f6c\u4e49\uff0c\u7528\u6237\u8f93\u5165\u7684\u7528\u6237\u540d\u76f4\u63a5\u62fc\u63a5\u81f3LDAP DN\u6a21\u677f\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u6216\u5192\u5145\u5176\u4ed6\u7528\u6237\u3002",
  "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/svszql3od8td7hn6conyj2oq70v53b5s",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2026-26205",
  "openTime": "2026-07-02",
  "patchDescription": "Apache Shiro\u662f\u7f8e\u56fdApache\u57fa\u91d1\u4f1a\u5f00\u6e90\u7684\u4e00\u4e2a\u5b89\u5168\u6743\u9650\u6846\u67b6\u3002\r\n\r\nApache Shiro\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8eDefaultLdapRealm\u7c7b\u4e2d\u672a\u5bf9RFC 2253\u7279\u6b8a\u5b57\u7b26\u8fdb\u884c\u8f6c\u4e49\uff0c\u7528\u6237\u8f93\u5165\u7684\u7528\u6237\u540d\u76f4\u63a5\u62fc\u63a5\u81f3LDAP DN\u6a21\u677f\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u6216\u5192\u5145\u5176\u4ed6\u7528\u6237\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Apache Shiro\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2026-26205\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Apache Shiro \u003c=2.2.0",
      "Apache Shiro 3.0.0-alpha-1"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2026-49268",
  "serverity": "\u9ad8",
  "submitTime": "2026-06-30",
  "title": "Apache Shiro\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2026-26205\uff09"
}

CVE-2026-49268 (GCVE-0-2026-49268)

Vulnerability from cvelistv5 – Published: 2026-06-17 13:07 – Updated: 2026-06-17 17:02

Title

Apache Shiro: LDAP DN Injection in DefaultLdapRealm

Summary

A remote attacker can inject LDAP special characters into the Distinguished Name (DN) construction in DefaultLdapRealm class. User-supplied username input is directly concatenated into the LDAP DN template without any escaping of RFC 2253 special characters. This allows an attacker to manipulate the DN structure used for LDAP bind authentication, potentially bypassing authentication or impersonating other users. This issue affects all Apache Shiro versions through 2.2.0, and 3.0.0-alpha-1 when using DefaultLdapRealm Upgrade to Apache Shiro 2.2.1 or 3.0.0-alpha-2 or later, which fixes the issue.

Severity

8.8 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/S:P/AU:Y/R:A/RE:L/U:Red

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-90 - Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')

Assigner

apache

References

2 references

URL	Tags
https://lists.apache.org/thread/svszql3od8td7hn6c…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/06/17/8

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Shiro	Affected: 0 , ≤ 2.2.0 (semver) Affected: 3.0.0-alpha-0 , ≤ 3.0.0-alpha-1 (semver)

Credits

zhaokaifei (reporter) - ChinaTelecom Lenny Primak <lenny@flowlogix.com>

Show details on NVD website

JSON

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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-17T15:02:25.313149Z",
                "version": "2.0.3"
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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.

Detection rules are retrieved from Rulezet.

Action not permitted

CNVD-2026-26205

CVE-2026-49268 (GCVE-0-2026-49268)

Tags

Sightings

Nomenclature