CVE-2026-116239

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-116239", "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "state": "PUBLISHED", "assignerShortName": "PostgreSQL", "dateReserved": "2026-10-25T16:26:16.419Z", "datePublished": "2026-10-30T19:55:12.002Z", "dateUpdated": "2026-11-06T16:08:14.320Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "shortName": "PostgreSQL", "dateUpdated": "2026-10-30T19:55:12.002Z"}, "title": "pgAdmin 4: An LDAP or Kerberos login is logged in to another account with the same username", "datePublic": "2026-10-29T00:00:00.000Z", "affected": [{"vendor": "pgadmin.org", "product": "pgAdmin 4", "repo": "https://github.com/pgadmin-org/pgadmin4", "modules": ["Authentication"], "programFiles": ["https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/authenticate/ldap.py", "https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/authenticate/internal.py"], "versions": [{"status": "affected", "version": "0", "lessThan": "9.19", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "In server mode pgAdmin 4 keeps an account per authentication source, so the same username can exist as, for example, an internal account and an LDAP account. After LDAP or Kerberos authenticated a user, pgAdmin chose the account to log in by username alone, or took the account Flask-Security's login form had looked up, without checking that it came from the source that authenticated the user. The session therefore belonged to another account, with its role, its servers and its saved database passwords:\n\n- An LDAP or Kerberos user whose username matched an internal account was logged in as that internal account, including the administrator account created when pgAdmin is first set up.\n- With internal authentication listed before LDAP or Kerberos in AUTHENTICATION_SOURCES, the login form's internal validation looks up the account whose email was typed and keeps it even though its password does not match. A Kerberos user could type another Kerberos user's principal and be logged in as that user, and an LDAP user could do the same with an LDAP account whose email is their username.\n\nExploitation requires valid credentials for an LDAP directory or Kerberos realm that pgAdmin is configured to use.\n\nThe fix looks the account up by the authenticated username and the source that authenticated it, and no longer uses the account the login form found for any source but internal authentication. Internal authentication logs in that account only if it is an internal account. Desktop mode is not affected.\n\nThis issue affects pgAdmin 4: before 9.19."}], "references": [{"url": "https://github.com/pgadmin-org/pgadmin4/issues/10675", "tags": ["issue-tracking"]}, {"url": "https://github.com/pgadmin-org/pgadmin4/commit/7378060e5c8f7c3279b8138d371e13fd8b45a729", "tags": ["patch"]}, {"url": "https://github.com/pgadmin-org/pgadmin4/commit/269e32d5ee01f2eb5de36e464d44487a831f2424", "tags": ["patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "The attacker needs valid credentials in the configured LDAP directory or Kerberos realm, so Privileges Required is Low. Attack Complexity is High: the attacker's directory username must match the target account's username, which a directory user does not normally choose, or, for the typed-principal variant, internal authentication must be listed before Kerberos. The session is the target account's, possibly the initial administrator's, so Confidentiality, Integrity and Availability of pgAdmin are High (an administrator can create, change and delete users). Scope is Changed because the session uses the target account's saved database passwords, connecting to PostgreSQL servers as a role the attacker was never given."}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseSeverity": "HIGH", "baseScore": 8.5, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "Same reasoning as the CVSS 3.1 entry. AT:P for the username collision or the order of AUTHENTICATION_SOURCES. VC:H/VI:H/VA:H for the target pgAdmin account; SC:H/SI:H for the PostgreSQL servers reached with its saved credentials."}], "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N", "baseScore": 8.9, "baseSeverity": "HIGH"}}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-287 Improper Authentication", "cweId": "CWE-287", "type": "CWE"}, {"lang": "en", "description": "CWE-639 Authorization Bypass Through User-Controlled Key", "cweId": "CWE-639", "type": "CWE"}]}], "credits": [{"lang": "en", "value": "Yves Soete of Blacksight LLC <yves.soete@blacksight.io>", "type": "finder"}, {"lang": "en", "value": "Dave Page <dpage@pgadmin.org>", "type": "remediation developer"}, {"lang": "en", "value": "Ashesh Vashi <ashesh.vashi@enterprisedb.com>", "type": "remediation developer"}, {"lang": "en", "value": "Hitesh Jambhale <hitesh.jambhale@enterprisedb.com>", "type": "remediation reviewer"}, {"lang": "en", "value": "Kundan Sable <kundan.sable@enterprisedb.com>", "type": "remediation reviewer"}, {"lang": "en", "value": "Ashesh Vashi <ashesh.vashi@enterprisedb.com>", "type": "remediation reviewer"}], "source": {"discovery": "EXTERNAL"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-11-06T16:07:56.702996Z", "id": "CVE-2026-116239", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"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": "2026-11-06T16:08:14.320Z"}}]}}

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Attack Complexity is High: the attacker's directory username must match the target account's username, which a directory user does not normally choose, or, for the typed-principal variant, internal authentication must be listed before Kerberos. The session is the target account's, possibly the initial administrator's, so Confidentiality, Integrity and Availability of pgAdmin are High (an administrator can create, change and delete users). Scope is Changed because the session uses the target account's saved database passwords, connecting to PostgreSQL servers as a role the attacker was never given."}]}, {"format": "CVSS", "cvssV4_0": {"version": "4.0", "baseScore": 8.9, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N"}, "scenarios": [{"lang": "en", "value": "Same reasoning as the CVSS 3.1 entry. AT:P for the username collision or the order of AUTHENTICATION_SOURCES. VC:H/VI:H/VA:H for the target pgAdmin account; SC:H/SI:H for the PostgreSQL servers reached with its saved credentials."}]}], "affected": [{"repo": "https://github.com/pgadmin-org/pgadmin4", "vendor": "pgadmin.org", "modules": ["Authentication"], "product": "pgAdmin 4", "versions": [{"status": "affected", "version": "0", "lessThan": "9.19", "versionType": "custom"}], "programFiles": ["https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/authenticate/ldap.py", "https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/authenticate/internal.py"], "defaultStatus": "unaffected"}], "datePublic": "2026-10-29T00:00:00.000Z", "references": [{"url": "https://github.com/pgadmin-org/pgadmin4/issues/10675", "tags": ["issue-tracking"]}, {"url": "https://github.com/pgadmin-org/pgadmin4/commit/7378060e5c8f7c3279b8138d371e13fd8b45a729", "tags": ["patch"]}, {"url": "https://github.com/pgadmin-org/pgadmin4/commit/269e32d5ee01f2eb5de36e464d44487a831f2424", "tags": ["patch"]}], "descriptions": [{"lang": "en", "value": "In server mode pgAdmin 4 keeps an account per authentication source, so the same username can exist as, for example, an internal account and an LDAP account. 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A Kerberos user could type another Kerberos user's principal and be logged in as that user, and an LDAP user could do the same with an LDAP account whose email is their username.\n\nExploitation requires valid credentials for an LDAP directory or Kerberos realm that pgAdmin is configured to use.\n\nThe fix looks the account up by the authenticated username and the source that authenticated it, and no longer uses the account the login form found for any source but internal authentication. Internal authentication logs in that account only if it is an internal account. Desktop mode is not affected.\n\nThis issue affects pgAdmin 4: before 9.19."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-287", "description": "CWE-287 Improper Authentication"}, {"lang": "en", "type": "CWE", "cweId": "CWE-639", "description": "CWE-639 Authorization Bypass Through User-Controlled Key"}]}], "providerMetadata": {"orgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "shortName": "PostgreSQL", "dateUpdated": "2026-10-30T19:55:12.002Z"}}}, "cveMetadata": {"cveId": "CVE-2026-116239", "state": "PUBLISHED", "dateUpdated": "2026-11-06T16:08:14.320Z", "dateReserved": "2026-10-25T16:26:16.419Z", "assignerOrgId": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "datePublished": "2026-10-30T19:55:12.002Z", "assignerShortName": "PostgreSQL"}, "dataVersion": "5.2"}

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After LDAP or Kerberos authenticated a user, pgAdmin chose the account to log in by username alone, or took the account Flask-Security's login form had looked up, without checking that it came from the source that authenticated the user. The session therefore belonged to another account, with its role, its servers and its saved database passwords:\n\n- An LDAP or Kerberos user whose username matched an internal account was logged in as that internal account, including the administrator account created when pgAdmin is first set up.\n- With internal authentication listed before LDAP or Kerberos in AUTHENTICATION_SOURCES, the login form's internal validation looks up the account whose email was typed and keeps it even though its password does not match. A Kerberos user could type another Kerberos user's principal and be logged in as that user, and an LDAP user could do the same with an LDAP account whose email is their username.\n\nExploitation requires valid credentials for an LDAP directory or Kerberos realm that pgAdmin is configured to use.\n\nThe fix looks the account up by the authenticated username and the source that authenticated it, and no longer uses the account the login form found for any source but internal authentication. Internal authentication logs in that account only if it is an internal account. Desktop mode is not affected.\n\nThis issue affects pgAdmin 4: before 9.19."}], "id": "CVE-2026-116239", "lastModified": "2026-11-06T16:17:46.910", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 6.0, "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.9, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-116239", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T16:07:56.702996Z", "version": "2.0.3"}}]}, "published": "2026-10-30T20:17:03.017", "references": [{"source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "tags": ["Patch"], "url": "https://github.com/pgadmin-org/pgadmin4/commit/269e32d5ee01f2eb5de36e464d44487a831f2424"}, {"source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "tags": ["Patch"], "url": "https://github.com/pgadmin-org/pgadmin4/commit/7378060e5c8f7c3279b8138d371e13fd8b45a729"}, {"source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "tags": ["Issue Tracking"], "url": "https://github.com/pgadmin-org/pgadmin4/issues/10675"}], "sourceIdentifier": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}, {"lang": "en", "value": "CWE-639"}], "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007", "type": "Secondary"}]}

{}

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