CVE-2026-82311

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-82311", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-08-28T12:58:33.571Z", "datePublished": "2026-09-16T09:00:38.459Z", "dateUpdated": "2026-09-17T19:27:29.873Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "packageURL": "pkg:pypi/apache-airflow-providers-fab", "product": "Apache Airflow FAB provider", "vendor": "Apache Software Foundation", "versions": [{"lessThan": "3.9.0", "status": "affected", "version": "2.4.2", "versionType": "semver"}], "collectionURL": "https://pypi.python.org", "packageName": "apache-airflow-providers-fab"}], "credits": [{"lang": "en", "type": "finder", "value": "Mayank Jangid (OpenSec)"}, {"lang": "en", "type": "remediation developer", "value": "Jarek Potiuk"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Apache Airflow FAB provider: resetting a user&#x27;s password does not delete that user&#x27;s existing database-backed sessions, despite documented behaviour that it does. The cleanup compares the string identifier Flask-Login stores in the session against the user&#x27;s integer database identifier, so the comparison never matches and no session is removed. An attacker who already holds a copy of the victim&#x27;s session cookie keeps access as that user after the password change, so the reset does not evict them.<br><br>Affects deployments using the FAB auth manager with `[fab] session_backend=database`. The trigger is an administrator (or the user) running the supported password-reset command as a containment action after a session cookie has been compromised; the secure-cookie backend is out of scope, as it documents that it cannot centrally delete sessions.<br><br>apache-airflow-providers-fab 3.9.0 also fixes CVE-2026-86462, a second, independent route to the same outcome via the Admin user-edit endpoint; a single upgrade closes both.<br><br>Users of apache-airflow-providers-fab are recommended to upgrade to version 3.9.0 or later, which compares the identifiers consistently."}], "value": "Apache Airflow FAB provider: resetting a user's password does not delete that user's existing database-backed sessions, despite documented behaviour that it does. The cleanup compares the string identifier Flask-Login stores in the session against the user's integer database identifier, so the comparison never matches and no session is removed. An attacker who already holds a copy of the victim's session cookie keeps access as that user after the password change, so the reset does not evict them.\n\nAffects deployments using the FAB auth manager with `[fab] session_backend=database`. The trigger is an administrator (or the user) running the supported password-reset command as a containment action after a session cookie has been compromised; the secure-cookie backend is out of scope, as it documents that it cannot centrally delete sessions.\n\napache-airflow-providers-fab 3.9.0 also fixes CVE-2026-86462, a second, independent route to the same outcome via the Admin user-edit endpoint; a single upgrade closes both.\n\nUsers of apache-airflow-providers-fab are recommended to upgrade to version 3.9.0 or later, which compares the identifiers consistently."}], "metrics": [{"other": {"content": {"text": "moderate"}, "type": "Textual description of severity"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-613", "description": "CWE-613: Insufficient Session Expiration", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-09-16T14:54:52.025Z"}, "references": [{"tags": ["patch"], "url": "https://github.com/apache/airflow/pull/72198"}, {"tags": ["vendor-advisory"], "url": "https://lists.apache.org/thread/mmplwl93shy615shkpp9p4fzyjvr4yqw?users@airflow.apache.org"}, {"tags": ["related"], "url": "https://www.cve.org/CVERecord?id=CVE-2026-86462"}, {"url": "https://lists.apache.org/thread/mmplwl93shy615shkpp9p4fzyjvr4yqw", "tags": ["vendor-advisory"]}], "source": {"discovery": "UNKNOWN"}, "title": "Apache Airflow FAB provider: FAB password reset never invalidates sessions: string/int _user_id comparison is always false", "x_generator": {"engine": "airflow-s/generate_cve_json.py"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-09-17T19:26:29.021619Z", "id": "CVE-2026-82311", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-17T19:27:29.873Z"}}]}}

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The cleanup compares the string identifier Flask-Login stores in the session against the user's integer database identifier, so the comparison never matches and no session is removed. An attacker who already holds a copy of the victim's session cookie keeps access as that user after the password change, so the reset does not evict them.\n\nAffects deployments using the FAB auth manager with `[fab] session_backend=database`. The trigger is an administrator (or the user) running the supported password-reset command as a containment action after a session cookie has been compromised; the secure-cookie backend is out of scope, as it documents that it cannot centrally delete sessions.\n\napache-airflow-providers-fab 3.9.0 also fixes CVE-2026-86462, a second, independent route to the same outcome via the Admin user-edit endpoint; a single upgrade closes both.\n\nUsers of apache-airflow-providers-fab are recommended to upgrade to version 3.9.0 or later, which compares the identifiers consistently.", "supportingMedia": [{"type": "text/html", "value": "Apache Airflow FAB provider: resetting a user&#x27;s password does not delete that user&#x27;s existing database-backed sessions, despite documented behaviour that it does. The cleanup compares the string identifier Flask-Login stores in the session against the user&#x27;s integer database identifier, so the comparison never matches and no session is removed. An attacker who already holds a copy of the victim&#x27;s session cookie keeps access as that user after the password change, so the reset does not evict them.<br><br>Affects deployments using the FAB auth manager with `[fab] session_backend=database`. The trigger is an administrator (or the user) running the supported password-reset command as a containment action after a session cookie has been compromised; the secure-cookie backend is out of scope, as it documents that it cannot centrally delete sessions.<br><br>apache-airflow-providers-fab 3.9.0 also fixes CVE-2026-86462, a second, independent route to the same outcome via the Admin user-edit endpoint; a single upgrade closes both.<br><br>Users of apache-airflow-providers-fab are recommended to upgrade to version 3.9.0 or later, which compares the identifiers consistently.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-613", "description": "CWE-613: Insufficient Session Expiration"}]}], "providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-09-16T14:54:52.025Z"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-82311", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-17T19:26:29.021619Z"}}}], "providerMetadata": {"shortName": "CISA-ADP", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "dateUpdated": "2026-09-17T19:27:23.895Z"}}]}, "cveMetadata": {"cveId": "CVE-2026-82311", "state": "PUBLISHED", "dateUpdated": "2026-09-16T14:54:52.025Z", "dateReserved": "2026-08-28T12:58:33.571Z", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "datePublished": "2026-09-16T09:00:38.459Z", "assignerShortName": "apache"}, "dataVersion": "5.2"}

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.4.2,3.9.0)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Apache Airflow FAB provider", "source": "cna", "vendor": "Apache Software Foundation"}, "product": "airflow_fab_provider", "vendor": "apache"}], "created": "2026-09-16T13:30:10.613680+00:00", "updated": "2026-09-18T12:15:06.764392+00:00", "vendors": ["apache", "apache$PRODUCT$airflow_fab_provider"]}