{"id":"CVE-2026-8670","state":"PUBLISHED","title":"Insecure session handling on metrics web server","description":"Insufficient session expiration vulnerability in syslink software AG Avantra on Linux, Windows allows Reusing Session IDs (aka Session Replay).\n\nThis issue affects Avantra: before 25.3.1.","publishedAt":"2026-05-22T13:12:52.693Z","updatedAt":"2026-05-22T15:05:13.802Z","severity":{"score":9.6,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","source":"NCSC.ch"},"assigner":"NCSC.ch","products":["syslink software AG Avantra"],"affected":[{"vendor":"syslink software AG","product":"Avantra","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"25.3.1","versionType":"semver"}],"platforms":["Linux","Windows"]}],"references":["https://support.avantra.com/hc/en-us/articles/5533929912351"],"weaknesses":["CWE-613"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/8xxx/CVE-2026-8670.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-8670","state":"PUBLISHED","datePublished":"2026-05-22T13:12:52.693Z","dateUpdated":"2026-05-22T15:05:13.802Z","assignerShortName":"NCSC.ch","assignerOrgId":"455daabc-a392-441d-aa46-37d35189897c","dateReserved":"2026-05-15T11:49:57.345Z"},"containers":{"cna":{"title":"Insecure session handling on metrics web server","descriptions":[{"lang":"en","value":"Insufficient session expiration vulnerability in syslink software AG Avantra on Linux, Windows allows Reusing Session IDs (aka Session Replay).\n\nThis issue affects Avantra: before 25.3.1."}],"affected":[{"vendor":"syslink software AG","product":"Avantra","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"25.3.1","versionType":"semver"}],"platforms":["Linux","Windows"]}],"references":[{"url":"https://support.avantra.com/hc/en-us/articles/5533929912351","tags":["vendor-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"CRITICAL","baseScore":9.6,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-613","lang":"en","description":"CWE-613 Insufficient session expiration","type":"CWE"}]}],"providerMetadata":{"shortName":"NCSC.ch","orgId":"455daabc-a392-441d-aa46-37d35189897c","dateUpdated":"2026-05-22T13:12:52.693Z"},"impacts":[{"capecId":"CAPEC-60","descriptions":[{"lang":"en","value":"CAPEC-60 Reusing Session IDs (aka Session Replay)"}]}],"credits":[{"lang":"en","value":"Vicxer Inc.","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.1"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-22T15:05:05.008406Z","id":"CVE-2026-8670","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-22T15:05:13.802Z"}}]}}}