CVE-2026-67223 Vulnerability Analysis & Exploit Details

CVE-2026-67223
Vulnerability Scoring

7.1
/10
Very High Risk

Highly exploitable, CVE-2026-67223 poses a critical security risk that could lead to severe breaches.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: Low
    Some privileges are necessary to exploit the vulnerability.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2026-67223 Details

Status: Analyzed

Last updated: 🕢 15 Oct 2026, 19:54 UTC
Originally published on: 🕔 25 Sep 2026, 17:17 UTC

Time between publication and last update: 20 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2026-67223 Vulnerability Summary

CVE-2026-67223: RabbitMQ is a messaging and streaming broker. The advisory establishes affected 3.13, 4.0, 4.1, 4.2, and 4.3 maintenance lines but contains conflicting first-fixed versions for the 3.13, 4.0, and 4.1 lines. fill/2 substitutes ${username} into user_dn_pattern without RFC 4514 DN escaping, allowing a crafted username to alter the LDAP bind DN and potentially select a different directory entry. Exploitation requires rabbitmq_auth_backend_ldap with a user_dn_pattern containing ${username}, a directory layout in which the injected suffix resolves usefully, and a password valid for the resulting DN. The advisory body identifies 3.13.15, 4.0.20, 4.1.11, 4.2.9, and 4.3.3 as fixed, while structured metadata identifies 3.13.18, 4.0.23, 4.1.14, 4.2.9, and 4.3.3. No fixed-version assertion is certifiable until a curator resolves this conflict.

Assessing the Risk of CVE-2026-67223

Access Complexity Graph

The exploitability of CVE-2026-67223 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-67223

CVE-2026-67223 presents an accessible attack vector with minimal effort required. Restricting access controls and implementing security updates are critical to reducing exploitation risks.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-67223, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-67223, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2026-67223 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: Low
    Exploiting CVE-2026-67223 may cause minor changes to data without severely impacting its accuracy.
  • Availability: None
    CVE-2026-67223 does not impact system availability.

CVE-2026-67223 References

External References

CWE Common Weakness Enumeration

CWE-90

CAPEC Common Attack Pattern Enumeration and Classification

  • LDAP Injection CAPEC-136 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.

Vulnerable Configurations

  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:-:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:-:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:rc3:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:rc3:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:rc4:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:rc4:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:rc5:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:rc5:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:rc6:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:rc6:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:beta1:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:beta1:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:beta2:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:beta2:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:beta3:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:beta3:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:beta4:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:beta4:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:beta5:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:beta5:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:beta6:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.0:beta6:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.1:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.1:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.2:-:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.2:-:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.2:rc1:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.2:rc1:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.3:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.3:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.4:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.4:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.5:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.5:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.6:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.6:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.7:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.7:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.9:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.9:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:3.13.15:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:3.13.15:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.0:-:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.0:-:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.0:beta1:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.0:beta1:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.0:beta2:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.0:beta2:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.0:beta3:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.0:beta3:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.0:beta4:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.0:beta4:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.0:beta5:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.0:beta5:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.0:beta6:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.0:beta6:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.1:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.1:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.2:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.2:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.3:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.3:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.4:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.4:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.5:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.5:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.6:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.6:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.7:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.7:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.8:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.8:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.9:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.9:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.13:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.13:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.20:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.20:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.0.22:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.0.22:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.1.0:-:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.1.0:-:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.1.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.1.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.1.0:rc2:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.1.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.1.0:beta1:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.1.0:beta1:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.1.0:beta2:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.1.0:beta2:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.1.0:beta3:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.1.0:beta3:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.1.0:beta4:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.1.0:beta4:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.1.0:beta5:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.1.0:beta5:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.1.0:alpha:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.1.0:alpha:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.1.2:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.1.2:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.1.3:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.1.3:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.1.4:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.1.4:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.1.5:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.1.5:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.1.6:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.1.6:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.1.7:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.1.7:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.1.8:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.1.8:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.1.11:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.1.11:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.2.0:-:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.2.0:-:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.2.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.2.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.2.0:beta1:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.2.0:beta1:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.2.0:beta2:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.2.0:beta2:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.2.0:beta3:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.2.0:beta3:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.2.0:beta4:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.2.0:beta4:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.2.1:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.2.1:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.2.2:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.2.2:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.2.3:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.2.3:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.2.4:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.2.4:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.2.5:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.2.5:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.2.6:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.2.6:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.2.7:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.2.7:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.2.8:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.2.8:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.3.0:-:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.3.0:-:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.3.0:rc0:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.3.0:rc0:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.3.0:rc1:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.3.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.3.0:beta1:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.3.0:beta1:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.3.1:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.3.1:*:*:*:*:*:*:*
  • cpe:2.3:a:broadcom:rabbitmq_server:4.3.2:*:*:*:*:*:*:*
    cpe:2.3:a:broadcom:rabbitmq_server:4.3.2:*:*:*:*:*:*:*

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