Unvalidated Redirect in Armeria-SAML by Line
CVE-2026-11753

5.1MEDIUM

Key Information:

Vendor

Ly Corporation

Status
Armeria
Vendor
CVE Published:
4 November 2026

What is CVE-2026-11753?

A vulnerability in Armeria-SAML prior to version 1.41.1 allows an attacker to manipulate the RelayState parameter, resulting in an unsafe redirect to a malicious URL after successful authentication. This exposure can lead to significant security risks, including phishing attempts and unauthorized access.

Affected Version(s)

Armeria 1.41.1

References

https://line.github.io/security-advisory-blog/CVE-2026-11...
https://github.com/line/armeria/security/advisories/GHSA-...

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.