{"api_version":"1","generated_at":"2026-10-31T08:05:58+00:00","cve":"CVE-2026-116244","urls":{"html":"https://cve.report/CVE-2026-116244","api":"https://cve.report/api/cve/CVE-2026-116244.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-116244","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-116244"},"summary":{"title":"pgAdmin 4: libpq uses the pgAdmin service account's Kerberos credentials","description":"When a pgAdmin 4 connection was not meant to use a Kerberos user's delegated credentials, pgAdmin removed KRB5CCNAME from its environment, so the Kerberos library fell back to the default credential cache, or a client keytab, of the operating-system account running pgAdmin. libpq then answered any server that asked for GSSAPI authentication with that account's ticket, whatever user name the pgAdmin user gave, so in server mode any user could connect as the service account's Kerberos principal; gssencmode=disable did not prevent it. On Windows, SSPI used the service account's logon in the same way. psql was also started with pgAdmin's environment, which could hold another user's credential cache while that user was connecting.\n\nThe fix points KRB5CCNAME and KRB5_CLIENT_KTNAME at a file that cannot exist except while a Kerberos-authenticated user connects with Kerberos, and gives every other connection, psql and the utilities require_auth=!gss,!sspi and gssencmode=disable, checked on the final connection string. require_auth needs libpq 16 or later.\n\nThis issue affects pgAdmin 4: before 9.19.","state":"PUBLISHED","assigner":"PostgreSQL","published_at":"2026-10-30 20:17:04","updated_at":"2026-10-30 20:17:04"},"problem_types":["CWE-522","CWE-1188","CWE-522 CWE-522 Insufficiently Protected Credentials","CWE-1188 CWE-1188 Initialization of a Resource with an Insecure Default"],"metrics":[{"version":"4.0","source":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","type":"Secondary","score":"7.1","severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/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","data":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/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","baseScore":7.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}},{"version":"4.0","source":"CNA","type":"CVSS","score":"7.1","severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N","data":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N","version":"4.0"}},{"version":"3.1","source":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","type":"Secondary","score":"8.2","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","baseScore":8.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"8.2","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","data":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.2,"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:N","version":"3.1"}}],"references":[{"url":"https://github.com/pgadmin-org/pgadmin4/issues/10655","name":"https://github.com/pgadmin-org/pgadmin4/issues/10655","refsource":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/pgadmin-org/pgadmin4/commit/145e511f05eed69ebcadd3cd61ffea0a5b4c69a4","name":"https://github.com/pgadmin-org/pgadmin4/commit/145e511f05eed69ebcadd3cd61ffea0a5b4c69a4","refsource":"f86ef6dc-4d3a-42ad-8f28-e6d5547a5007","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-116244","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116244","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"pgadmin.org","product":"pgAdmin 4","version":"affected 9.19 custom","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Dave Page <dpage@pgadmin.org>","lang":"en"},{"source":"CNA","value":"Kundan Sable <kundan.sable@enterprisedb.com>","lang":"en"},{"source":"CNA","value":"Hitesh Jambhale <hitesh.jambhale@enterprisedb.com>","lang":"en"},{"source":"CNA","value":"Ashesh Vashi <ashesh.vashi@enterprisedb.com>","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","modules":["Servers","Authentication","PSQL Tool","Backup","Restore"],"product":"pgAdmin 4","programFiles":["https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/utils/driver/psycopg3/server_manager.py","https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/utils/locker.py"],"repo":"https://github.com/pgadmin-org/pgadmin4","vendor":"pgadmin.org","versions":[{"lessThan":"9.19","status":"affected","version":"0","versionType":"custom"}]}],"credits":[{"lang":"en","type":"remediation developer","value":"Dave Page <dpage@pgadmin.org>"},{"lang":"en","type":"remediation reviewer","value":"Kundan Sable <kundan.sable@enterprisedb.com>"},{"lang":"en","type":"remediation reviewer","value":"Hitesh Jambhale <hitesh.jambhale@enterprisedb.com>"},{"lang":"en","type":"remediation reviewer","value":"Ashesh Vashi <ashesh.vashi@enterprisedb.com>"}],"datePublic":"2026-10-29T00:00:00.000Z","descriptions":[{"lang":"en","value":"When a pgAdmin 4 connection was not meant to use a Kerberos user's delegated credentials, pgAdmin removed KRB5CCNAME from its environment, so the Kerberos library fell back to the default credential cache, or a client keytab, of the operating-system account running pgAdmin. libpq then answered any server that asked for GSSAPI authentication with that account's ticket, whatever user name the pgAdmin user gave, so in server mode any user could connect as the service account's Kerberos principal; gssencmode=disable did not prevent it. On Windows, SSPI used the service account's logon in the same way. psql was also started with pgAdmin's environment, which could hold another user's credential cache while that user was connecting.\n\nThe fix points KRB5CCNAME and KRB5_CLIENT_KTNAME at a file that cannot exist except while a Kerberos-authenticated user connects with Kerberos, and gives every other connection, psql and the utilities require_auth=!gss,!sspi and gssencmode=disable, checked on the final connection string. require_auth needs libpq 16 or later.\n\nThis issue affects pgAdmin 4: before 9.19."}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.2,"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:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"Any authenticated user who can register a server. Attack Complexity is High: the service account must hold a credential cache or keytab, or run on a domain-joined Windows host, and a reachable server must accept that principal. Scope is Changed because the connection is made as the service account's principal, an identity the attacker was never granted; Confidentiality and Integrity are High on that database server. Availability is None."}]},{"cvssV4_0":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:N","version":"4.0"},"format":"CVSS","scenarios":[{"lang":"en","value":"Same reasoning as the CVSS 3.1 entry. AT:P for the Kerberos deployment conditions. 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On Windows, SSPI used the service account's logon in the same way. psql was also started with pgAdmin's environment, which could hold another user's credential cache while that user was connecting.\n\nThe fix points KRB5CCNAME and KRB5_CLIENT_KTNAME at a file that cannot exist except while a Kerberos-authenticated user connects with Kerberos, and gives every other connection, psql and the utilities require_auth=!gss,!sspi and gssencmode=disable, checked on the final connection string. require_auth needs libpq 16 or later.\n\nThis issue affects pgAdmin 4: before 9.19.","Type":"Description","Title":"pgAdmin 4: libpq uses the pgAdmin service account's Kerberos cre"}]}}}