{"id":"CVE-2026-78174","state":"PUBLISHED","title":"WatchGuard Dimension Session Hijack via Exposed Session Tokens in Diagnostic Logs","description":"WatchGuard Dimension records unredacted session identifiers for logged-in users in its web UI diagnostic log. A low-privileged Dimension Administrator can retrieve this log and extract a Super Administrator's session token while that administrator is logged in, enabling account takeover.","publishedAt":"2026-08-27T23:26:30.875Z","updatedAt":"2026-08-28T15:56:52.024Z","severity":{"score":9.3,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:N/SA:N","source":"WatchGuard"},"assigner":"WatchGuard","products":["WatchGuard Dimension"],"affected":[{"vendor":"WatchGuard","product":"Dimension","defaultStatus":"unaffected","versions":[{"version":"2.0","status":"affected","lessThan":"2.3.1","versionType":"semver"}]}],"references":["https://psirt.watchguard.com/CVE-2026-78174"],"weaknesses":["CWE-200","CWE-269","CWE-532"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/78xxx/CVE-2026-78174.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-78174","state":"PUBLISHED","datePublished":"2026-08-27T23:26:30.875Z","dateUpdated":"2026-08-28T15:56:52.024Z","assignerShortName":"WatchGuard","assignerOrgId":"5d1c2695-1a31-4499-88ae-e847036fd7e3","dateReserved":"2026-08-23T15:33:57.487Z"},"containers":{"cna":{"title":"WatchGuard Dimension Session Hijack via Exposed Session Tokens in Diagnostic Logs","descriptions":[{"lang":"en","value":"WatchGuard Dimension records unredacted session identifiers for logged-in users in its web UI diagnostic log. A low-privileged Dimension Administrator can retrieve this log and extract a Super Administrator's session token while that administrator is logged in, enabling account takeover."}],"affected":[{"vendor":"WatchGuard","product":"Dimension","defaultStatus":"unaffected","versions":[{"version":"2.0","status":"affected","lessThan":"2.3.1","versionType":"semver"}]}],"references":[{"url":"https://psirt.watchguard.com/CVE-2026-78174","tags":["vendor-advisory"]}],"metrics":[{"cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:N/SA:N","baseScore":9.3,"baseSeverity":"CRITICAL"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-200","lang":"en","description":"CWE-200","type":"CWE"},{"cweId":"CWE-269","lang":"en","description":"CWE-269","type":"CWE"},{"cweId":"CWE-532","lang":"en","description":"CWE-532","type":"CWE"}]}],"providerMetadata":{"shortName":"WatchGuard","orgId":"5d1c2695-1a31-4499-88ae-e847036fd7e3","dateUpdated":"2026-08-27T23:26:30.875Z"},"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:watchguard:dimension:*:*:*:*:*:*:*:*","versionStartIncluding":"2.0","versionEndExcluding":"2.3.1"}]}]}],"credits":[{"lang":"en","value":"Simone Paganessi (https://www.linkedin.com/in/simonepaganessi)","type":"finder"}],"solutions":[{"lang":"en","value":"Dimension 2.3.1","supportingMedia":[{"type":"text/html","base64":false,"value":"Dimension 2.3.1"}]}],"exploits":[{"lang":"en","value":"WatchGuard is not aware of any exploitation of this vulnerability in the wild.","supportingMedia":[{"type":"text/html","base64":false,"value":"WatchGuard is not aware of any exploitation of this vulnerability in the wild."}]}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-28T14:33:06.931740Z","id":"CVE-2026-78174","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-28T15:56:52.024Z"}}]}}}