Kroxylicious-authorizer-acl: kroxylicious: acl prefix matching can bypass authorization rules
CVSS score
6.5
EPSS probability
—
Risk score
0.7
Published
2 h ago
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Vulnerability description
DayBreach AI Explanation
Verified against sourcesSources read
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Source agreement
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Evidence confidence
%55
Short explanation
The Kroxylicious ACL authorizer’s prefix‑matching logic can incorrectly apply a rule to a different principal type or skip a broader rule when prefixes overlap. This may let an authenticated Kafka client access a resource (e.g., read a topic) that should be denied. CVSS 6.5 (Medium) and patch status are unknown. (S0)
Unauthorized Kafka topic access can lead to sensitive data leakage and confidentiality breaches. (S0)
What should be done?
- Monitor Red Hat security advisories
- Apply patches when released
- Review and simplify ACL configurations to remove overlapping prefixes
- Strengthen access controls with layered security policies
- Isolate Kafka traffic within the network
Chain of evidence and sources
Kroxylicious ACL yazarındaki önek‑eşleştirme hatası, kimliği doğrulanmış bir Kafka istemcisinin erişimi engellenmiş bir konuya ulaşmasını sağlayabilir.
Red Hat AMQ Streams for Apache Kafka 2 ve 3 bu güvenlik açığından etkilenir; yama durumu resmi kaynaklarda doğrulanamadı.
Show the technical text from the sources
A flaw was found in the Kroxylicious ACL authorizer. Its prefix-matching logic may apply a rule to a principal of a different type, or fail to check a broader matching rule when prefixes overlap. Depending on the ACL configuration, this may allow an authenticated Kafka client to access a resource (such as read a topic) that should be denied.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE: CWE-863
This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.
IMPACT: Affected Products and Software
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 6.5 | CVSS V3_1 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | CVE CNA |
| 6.5 | CVSS V31 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-118952 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-118952 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
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