---
id: CVE-2026-11753
title: >-
  A vulnerability has been identified in armeria-saml versions prior to 1.41.1,
  where attacker-controlled RelayState is reflected into the HTTP Location
  header after successful authentication, allowing an unvalidated redirect to an
  attacke…
summary: >-
  A vulnerability has been identified in armeria-saml versions prior to 1.41.1,
  where attacker-controlled RelayState is reflected into the HTTP Location
  header after successful authentication, allowing an unvalidated redirect to an
  attacke…
severity: medium
cvss: 5.1
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-601
vendor: LY Corporation
product: Armeria
affected:
  - Armeria (all versions)
published: '2026-11-04'
updated: '2026-11-04'
sourceUpdated: '2026-11-04T06:00:04.848Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-11753'
references:
  - url: 'https://line.github.io/security-advisory-blog/CVE-2026-11753/'
  - url: 'https://github.com/line/armeria/security/advisories/GHSA-89cp-657f-wp7v'
tags:
  - cve.org
epss: 0.00337
epssPercentile: 0.27288
ingestedAt: '2026-11-05T20:33:06.715Z'
---

## Overview

A vulnerability has been identified in armeria-saml versions prior to 1.41.1, where attacker-controlled RelayState is reflected into the HTTP Location header after successful authentication, allowing an unvalidated redirect to an attacker-controlled URL.

## Affected

- `Armeria (all versions)`

## Remediation

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