{"affected":[{"defaultStatus":"affected","product":"Armeria","source":"CNA: LY-Corporation","vendor":"LY Corporation","versions":[{"lessThan":"*","status":"unaffected","version":"1.43.0","versionType":"custom"}]}],"cveId":"CVE-2026-121820","cwes":["CWE-409"],"description":"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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":8.7,"severity":"high","source":"CNA: LY-Corporation","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"}],"modifiedAt":1793951208261,"publishedAt":1793951208261,"references":[{"source":"CNA: LY-Corporation","tags":[],"url":"https://line.github.io/security-advisory-blog/CVE-2026-121820/"},{"source":"CNA: LY-Corporation","tags":[],"url":"https://github.com/line/armeria/security/advisories/GHSA-6hgp-j5h7-33m3"}],"remediation":[],"revision":"842103fcf73ea398ea18c8d707faad894190914bb24a3fc0093d592aaae2b966","sources":[{"modifiedAt":1793951208261,"name":"CNA: LY-Corporation","retrievedAt":1793952536816,"url":"https://www.cve.org/CVERecord?id=CVE-2026-121820"}],"ssvc":null,"status":"published","title":"CVE-2026-121820","updatedAt":1793952536816}