---
id: CVE-2026-121823
title: >-
  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.
summary: >-
  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.
severity: high
cvss: 8.7
cvssVector: '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'
cvssSource: cna
cwe:
  - CWE-647
vendor: LY Corporation
product: Armeria
affected:
  - Armeria (all versions)
published: '2026-11-06'
updated: '2026-11-06'
sourceUpdated: '2026-11-06T07:46:56.347Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121823'
references:
  - url: 'https://line.github.io/security-advisory-blog/CVE-2026-121823/'
  - url: 'https://github.com/line/armeria/security/advisories/GHSA-xqhm-4ph4-423v'
tags:
  - cve.org
ingestedAt: '2026-11-06T08:48:01.715Z'
epss: 0.00439
epssPercentile: 0.38363
---

## Overview

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.

## Affected

- `Armeria (all versions)`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.