Common Weakness Enumeration

CWE-90

Allowed

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

Abstraction: Base · Status: Draft

The product constructs all or part of an LDAP query using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended LDAP query when it is sent to a downstream component.

125 vulnerabilities reference this CWE, most recent first.

CVE-2026-59652 (GCVE-0-2026-59652)

Vulnerability from cvelistv5 – Published: 2026-08-03 00:39 – Updated: 2026-08-03 13:30
VLAI
Title
LDAP filter injection in legacy jdk1.4 LDAPStoreHelper
Summary
In Bouncy Castle for Java before 1.85, LDAP filter injection in legacy jdk1.4 LDAPStoreHelper.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-90 - Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
Assigner
Impacted products
Vendor Product Version
Legion of the Bouncy Castle Inc. BC-JAVA Affected: 0 , < 1.85 (maven)
Create a notification for this product.
Credits
Alex Gaynor in collaboration with Claude and Anthropic Research
Show details on NVD website

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CVE-2026-58222 (GCVE-0-2026-58222)

Vulnerability from cvelistv5 – Published: 2026-07-30 15:11 – Updated: 2026-07-30 16:12
VLAI
Title
Samba: samba ad ldap compare filter injection and trusted-request confusion disclose protected attributes
Summary
A security flaw combining LDAP filter injection and improper authorization checks was found in Samba Active Directory Domain Controller (AD DC). When processing LDAP Compare requests, Samba fails to properly validate user-supplied attribute names and executes the resulting internal database search in a trusted context, bypassing normal Access Control List (ACL) enforcement. An authenticated low-privilege domain user can exploit these flaws to disclose confidential Active Directory attributes that would normally be inaccessible. The disclosed information may be leveraged to derive sensitive authentication material, potentially leading to privilege escalation and complete domain compromise. For example: In deployments configured with Group Managed Service Accounts (gMSAs), an attacker can extract the "msKds-RootKeyData" attribute and derive gMSA passwords offline, potentially leading to complete domain compromise if privileged gMSAs are present.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-90 - Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
Assigner
Date Public
2026-07-28 10:00
Credits
Red Hat would like to thank Andrew Tridgell (Samba Team), Bin Luo (University of Electronic Science and Technology of China (UESTC)), OpenAI Security Research, and Tristan Madani (Talence Security) for reporting this issue.
Show details on NVD website

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

Vulnerability from cvelistv5 – Published: 2026-06-17 13:07 – Updated: 2026-06-17 17:02
VLAI
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.
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
Impacted products
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)
Create a notification for this product.
Credits
zhaokaifei (reporter) - ChinaTelecom Lenny Primak <lenny@flowlogix.com>
Show details on NVD website

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CVE-2026-47303 (GCVE-0-2026-47303)

Vulnerability from cvelistv5 – Published: 2026-07-14 18:45 – Updated: 2026-08-03 22:52
VLAI
Title
ASP.NET Core Elevation of Privilege Vulnerability
Summary
Authentication bypass by assumed-immutable data in ASP.NET Core allows an authorized attacker to elevate privileges over a network.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-302 - Authentication Bypass by Assumed-Immutable Data
  • CWE-863 - Incorrect Authorization
  • CWE-90 - Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
Assigner
References
Date Public
2026-07-14 14:00
Show details on NVD website

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CVE-2026-46745 (GCVE-0-2026-46745)

Vulnerability from cvelistv5 – Published: 2026-05-25 10:41 – Updated: 2026-05-26 20:08
VLAI
Title
Apache Airflow FAB provider: LDAP Filter Injection in FAB Auth Manager _search_ldap reachable via /auth/token
Summary
Apache Airflow FAB Auth Manager contains an LDAP filter injection vulnerability (CWE-90) that allows unauthenticated attackers to exfiltrate directory data or bypass authentication. Upgrade to apache-airflow-providers-fab 3.6.4 or later. If immediate upgrade is not possible, disable LDAP authentication until the provider can be updated.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
Impacted products
Credits
Venkatraman Kumar (r3dw0lfsec), Securin orbisai0security (automated scanner — Orbis Security AI)
Show details on NVD website

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CVE-2026-45559 (GCVE-0-2026-45559)

Vulnerability from cvelistv5 – Published: 2026-06-10 14:02 – Updated: 2026-06-10 14:59
VLAI
Title
Roxy-WI: LDAP injection in /user/ldap/<username> (admin-only)
Summary
Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions 8.2.6.4 and prior, get_ldap_email (app/modules/roxywi/user.py:120-157) builds the LDAP search filter via f-string concatenation. The username URL path parameter is taken verbatim — no checkAjaxInput, no LDAP escape — and inserted, a username like *)(mail=*)(cn=* injects additional clauses, allowing the admin to enumerate or harvest attributes outside the intended record. At time of publication, there are no publicly available patches.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-90 - Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
Assigner
References
Impacted products
Vendor Product Version
roxy-wi roxy-wi Affected: <= 8.2.6.4
Create a notification for this product.
Show details on NVD website

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CVE-2026-44930 (GCVE-0-2026-44930)

Vulnerability from cvelistv5 – Published: 2026-05-22 12:16 – Updated: 2026-07-20 12:04
VLAI
Title
Apache CXF: LDAP Injection vulnerability in XKMS LDAP Repository
Summary
An LDAP injection vulnerability in the LDAP Certificate repository of the XKMS server in Apache CXF may allow an attacker to retrieve arbitrary certificates from the repository.  Users are recommended to upgrade to versions 4.2.1, 4.1.6 or 3.6.11, which fix this issue.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-90 - Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
Assigner
Impacted products
Vendor Product Version
Apache Software Foundation Apache CXF Affected: 4.2.0 , < 4.2.1 (semver)
Affected: 4.0.0 , < 4.1.6 (semver)
Affected: 0 , < 3.6.11 (semver)
Create a notification for this product.
Red Hat Red Hat build of Apache Camel 4.18.1.P1 for Spring Boot 3.5.16 Unaffected: repo-ldap , < * (rpm)
    cpe:/a:redhat:apache_camel_spring_boot:4.18
Create a notification for this product.
Red Hat Red Hat Fuse 7     cpe:/a:redhat:jboss_fuse:7
Create a notification for this product.
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack     cpe:/a:redhat:jbosseapxp
Create a notification for this product.
Show details on NVD website

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CVE-2026-44671 (GCVE-0-2026-44671)

Vulnerability from cvelistv5 – Published: 2026-05-14 21:13 – Updated: 2026-05-15 18:05
VLAI
Title
ZITADEL: LDAP Filter Injection in Login Flow
Summary
ZITADEL is an open source identity management platform. From 2.71.11 to before 3.4.10 and 4.15.0, a vulnerability was discovered in Zitadel's LDAP identity provider implementation, which fails to properly escape user-provided usernames before incorporating them into LDAP search filters. This allows unauthenticated attackers to perform LDAP Filter Injection during the login process. While this vulnerability does not allow for a full authentication bypass, an attacker can use LDAP metacharacters (such as *, (, )) to perform blind LDAP injection. By observing the different failure (or success) responses, an attacker can systematically enumerate valid usernames and extract sensitive attribute data from the connected LDAP directory. This vulnerability is fixed in 3.4.10 and 4.15.0.
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
Impacted products
Vendor Product Version
zitadel zitadel Affected: >= 2.71.11, < 3.4.10
Affected: >= 4.0.0, < 4.15.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-44617 (GCVE-0-2026-44617)

Vulnerability from cvelistv5 – Published: 2026-07-30 15:22 – Updated: 2026-07-31 17:53
VLAI
Title
Apache Zeppelin: LDAP filter injection in LdapRealm — incomplete fix of CVE-2024-31867
Summary
LDAP filter injection vulnerability in Apache Zeppelin. LdapRealm used RFC 4514 distinguished-name escaping when constructing LDAP search filters instead of RFC 4515 filter escaping, leaving special filter characters insufficiently escaped.                   This is an incomplete fix of CVE-2024-31867. This issue affects Apache Zeppelin versions 0.11.1, 0.11.2, and 0.12.0. Users are recommended to upgrade to version 0.12.1, which fixes this issue.
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
Impacted products
Vendor Product Version
Apache Software Foundation Apache Zeppelin Affected: 0.11.1 , < 0.12.1 (semver)
Create a notification for this product.
Credits
decsecre452
Show details on NVD website

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CVE-2026-44616 (GCVE-0-2026-44616)

Vulnerability from cvelistv5 – Published: 2026-07-30 15:21 – Updated: 2026-07-31 17:51
VLAI
Title
Apache Zeppelin: LDAP injection in ActiveDirectoryGroupRealm filter construction
Summary
LDAP injection vulnerability in Apache Zeppelin. ActiveDirectoryGroupRealm constructed LDAP search filters without escaping user-controlled input, allowing an authenticated attacker to inject LDAP filter syntax through the user-search endpoint                   and potentially expose directory information. The role-lookup path was also affected after successful LDAP authentication. This issue affects Apache Zeppelin versions 0.6.0 through 0.12.0. Users are recommended to upgrade to version 0.12.1, which                   fixes this issue.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-90 - Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
Assigner
Impacted products
Vendor Product Version
Apache Software Foundation Apache Zeppelin Affected: 0.6.0 , < 0.12.1 (semver)
Create a notification for this product.
Credits
Andrea Cosentino from Apache Software Foundation
Show details on NVD website

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              "cweId": "CWE-90",
              "description": "CWE-90 Improper Neutralization of Special Elements used in an LDAP Query (\u0027LDAP Injection\u0027)",
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        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
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      "references": [
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          "name": "Apache Zeppelin PR #5226",
          "tags": [
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          "url": "https://github.com/apache/zeppelin/pull/5226"
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      "source": {
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      "title": "Apache Zeppelin: LDAP injection in ActiveDirectoryGroupRealm filter construction",
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    "assignerShortName": "apache",
    "cveId": "CVE-2026-44616",
    "datePublished": "2026-07-30T15:21:21.609Z",
    "dateReserved": "2026-05-07T07:49:20.694Z",
    "dateUpdated": "2026-07-31T17:51:37.685Z",
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Mitigation MIT-5
Implementation

Strategy: Input Validation

  • Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
  • When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
  • Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
CAPEC-136: LDAP Injection

An attacker manipulates or crafts an LDAP query for the purpose of undermining the security of the target. Some applications use user input to create LDAP queries that are processed by an LDAP server. For example, a user might provide their username during authentication and the username might be inserted in an LDAP query during the authentication process. An attacker could use this input to inject additional commands into an LDAP query that could disclose sensitive information. For example, entering a * in the aforementioned query might return information about all users on the system. This attack is very similar to an SQL injection attack in that it manipulates a query to gather additional information or coerce a particular return value.