HIGH 8.7 NVD
CVE-2026-121820
A vulnerability has been identified in armeria-saml versions prior to 1.43.0, where the HTTP-Redirect binding decoder decompresses attacker-supplied SAML messag
A vulnerability has been identified in armeria-saml versions prior to 1.43.0, where the HTTP-Redirect binding decoder decompresses attacker-supplied SAML messages without limiting the output size before signature validation, allowing an unauthenticated remote attacker to exhaust server memory and cause a denial of service.
References
- https://github.com/line/armeria/security/advisories/GHSA-6hgp-j5h7-33m3
- https://line.github.io/security-advisory-blog/CVE-2026-121820/
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-11-06 via NVD.
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