A vulnerability has been identified in armeria versions prior to 1.43.0, where inconsistent request path normalization can allow unauthenticated attackers to bypass path-based access controls and access protected resources.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/line/armeria/security/advisories/GHSA-xqhm-4ph4-423v cve-icon cve-icon
https://line.github.io/security-advisory-blog/CVE-2026-121823/ cve-icon cve-icon
History

Fri, 06 Nov 2026 09:45:00 +0000

Type Values Removed Values Added
Title Path Normalization Bypass Allowing Unauthorized Access
Weaknesses CWE-20
CWE-285

Fri, 06 Nov 2026 08:00:00 +0000

Type Values Removed Values Added
Description A vulnerability has been identified in armeria versions prior to 1.43.0, where inconsistent request path normalization can allow unauthenticated attackers to bypass path-based access controls and access protected resources.
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: LY-Corporation

Published:

Updated: 2026-11-06T07:46:56.347Z

Reserved: 2026-11-04T05:50:04.722Z

Link: CVE-2026-121823

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-06T08:17:20.850

Modified: 2026-11-06T08:17:20.850

Link: CVE-2026-121823

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-06T09:30:08Z

Weaknesses