---
id: "CVE-2026-121823"
page: "https://infrastack.ai/live/CVE-2026-121823"
kind: "vulnerability"
aliases: ["CVE-2026-121823"]
title: "Armeria: inconsistent path normalization lets requests bypass access controls"
severity: "high"
cvss: 8.7
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["armeria", "java", "microservices", "package"]
not_affected_if: ["armeria-1.43.0-or-later"]
published_at: "2026-11-06T08:17:20+00:00"
first_seen_at: "2026-11-06T08:40:33+00:00"
updated_at: "2026-11-06T08:42:26+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-121823", "first_seen_at": "2026-11-06T08:40:33+00:00"}]
exploit_sources: []
---

# Armeria: inconsistent path normalization lets requests bypass access controls

Link for people: https://infrastack.ai/live/CVE-2026-121823 (this .md is for agents)

Armeria, a Java microservice framework, normalizes request paths inconsistently, so an unauthenticated attacker can send a crafted path. That path can bypass path-based access controls and reach protected resources.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the Armeria version in your build file (for example `pom.xml` or `build.gradle`) and confirm whether it is below `1.43.0`.
- Review any path-based access rules (such as route-level authorization) that depend on Armeria's request path.

## Fix

- Armeria: upgrade to `1.43.0` or later.

## Timeline

- 2026-11-06T08:40:33+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-121823

## Documents

- [advisory] Vendor advisory: github.com https://github.com/line/armeria/security/advisories/GHSA-xqhm-4ph4-423v

## From the sources

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.

---

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