{"api_version":"1","generated_at":"2026-07-13T11:00:52+00:00","cve":"CVE-2026-40082","urls":{"html":"https://cve.report/CVE-2026-40082","api":"https://cve.report/api/cve/CVE-2026-40082.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-40082","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-40082"},"summary":{"title":"Cacti: Session Fixation via missing session_regenerate_id() after login","description":"Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior have missing session_regenerate_id() after login, leading to Session Fixation. session_regenerate_id() is NOT called after successful login. The login flow at auth_login.php:203-207 directly sets $_SESSION[SESS_USER_ID] without rotating the session ID. The session cookie configuration is otherwise good (httponly=true, samesite=Strict, secure=true for HTTPS at include/global.php:513-537), but these do not prevent session fixation via same-site vectors. This issue has been fixed in version 1.2.31.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-06-25 23:17:02","updated_at":"2026-06-29 18:50:31"},"problem_types":["CWE-384","CWE-384 CWE-384: Session Fixation"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"5.4","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","baseScore":5.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"5.4","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","version":"3.1"}}],"references":[{"url":"https://github.com/Cacti/cacti/security/advisories/GHSA-273r-qr93-wgcp","name":"https://github.com/Cacti/cacti/security/advisories/GHSA-273r-qr93-wgcp","refsource":"security-advisories@github.com","tags":["Exploit","Mitigation","Vendor Advisory"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/Cacti/cacti/releases/tag/release%2F1.2.31","name":"https://github.com/Cacti/cacti/releases/tag/release%2F1.2.31","refsource":"security-advisories@github.com","tags":["Product","Release Notes"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/Cacti/cacti/commit/2fa404e70a5702be10682555911228e8e51ba198","name":"https://github.com/Cacti/cacti/commit/2fa404e70a5702be10682555911228e8e51ba198","refsource":"security-advisories@github.com","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-40082","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40082","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Cacti","product":"cacti","version":"affected < 1.2.31","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2026","cve_id":"40082","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"cacti","cpe5":"cacti","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"40082","cve":"CVE-2026-40082","epss":"0.001830000","percentile":"0.081020000","score_date":"2026-06-30","updated_at":"2026-07-01 00:05:17"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-40082","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-06-26T17:50:35.387627Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-06-26T18:42:09.149Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"cacti","vendor":"Cacti","versions":[{"status":"affected","version":"< 1.2.31"}]}],"descriptions":[{"lang":"en","value":"Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior have missing session_regenerate_id() after login, leading to Session Fixation. session_regenerate_id() is NOT called after successful login. The login flow at auth_login.php:203-207 directly sets $_SESSION[SESS_USER_ID] without rotating the session ID. The session cookie configuration is otherwise good (httponly=true, samesite=Strict, secure=true for HTTPS at include/global.php:513-537), but these do not prevent session fixation via same-site vectors. This issue has been fixed in version 1.2.31."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-384","description":"CWE-384: Session Fixation","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-06-25T22:33:45.871Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/Cacti/cacti/security/advisories/GHSA-273r-qr93-wgcp","tags":["x_refsource_CONFIRM"],"url":"https://github.com/Cacti/cacti/security/advisories/GHSA-273r-qr93-wgcp"},{"name":"https://github.com/Cacti/cacti/commit/2fa404e70a5702be10682555911228e8e51ba198","tags":["x_refsource_MISC"],"url":"https://github.com/Cacti/cacti/commit/2fa404e70a5702be10682555911228e8e51ba198"},{"name":"https://github.com/Cacti/cacti/releases/tag/release%2F1.2.31","tags":["x_refsource_MISC"],"url":"https://github.com/Cacti/cacti/releases/tag/release%2F1.2.31"}],"source":{"advisory":"GHSA-273r-qr93-wgcp","discovery":"UNKNOWN"},"title":"Cacti: Session Fixation via missing session_regenerate_id() after login"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-40082","datePublished":"2026-06-25T22:33:45.871Z","dateReserved":"2026-04-09T00:39:12.205Z","dateUpdated":"2026-06-26T18:42:09.149Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-25 23:17:02","lastModifiedDate":"2026-06-29 18:50:31","problem_types":["CWE-384","CWE-384 CWE-384: Session Fixation"],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","baseScore":5.4,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":2.5}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-26T17:50:35.387627Z","id":"CVE-2026-40082","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:cacti:cacti:*:*:*:*:*:*:*:*","versionEndExcluding":"1.2.31","matchCriteriaId":"5406B2E1-D53C-45AC-8F93-CFCAEDC1B5F8"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"40082","Ordinal":"1","Title":"Cacti: Session Fixation via missing session_regenerate_id() afte","CVE":"CVE-2026-40082","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"40082","Ordinal":"1","NoteData":"Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior have missing session_regenerate_id() after login, leading to Session Fixation. session_regenerate_id() is NOT called after successful login. The login flow at auth_login.php:203-207 directly sets $_SESSION[SESS_USER_ID] without rotating the session ID. The session cookie configuration is otherwise good (httponly=true, samesite=Strict, secure=true for HTTPS at include/global.php:513-537), but these do not prevent session fixation via same-site vectors. This issue has been fixed in version 1.2.31.","Type":"Description","Title":"Cacti: Session Fixation via missing session_regenerate_id() afte"}]}}}