CVE-2026-116250

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Several places opened it with a plain open() or handed the path to a utility that opened it later: the servers.json export and import and the import file listing, and the files given to pg_dump, pg_dumpall, pg_restore and psql by Backup, Restore and Import/Export Data. A symbolic link swapped in at the file or at any parent directory between the check and the open redirected the operation outside the storage directory, so a file could be written, overwritten or read, or loaded into a table, as the operating-system account running pgAdmin. A hard link to an outside file, which O_NOFOLLOW does not detect, and a FIFO, which could hang a request, had the same effect. CVE-2026-86861 fixed this for the File Manager's save_file; these were the remaining paths.\n\nExploitation requires creating such a link or FIFO inside the user's storage directory. pgAdmin offers no way to do so, and the per-user storage directories belong to the pgAdmin account, so this requires write access to the storage backend as a different operating-system user, for example a shared or network-mounted storage directory, and winning the race.\n\nThe fix opens each file by walking down from the storage directory one component at a time with O_NOFOLLOW, accepting only a regular file with one link, and passes the utilities the open descriptor (/dev/fd/N) on Linux. Error messages no longer include the server path.\n\nThis issue affects pgAdmin 4: before 9.19."}], "references": [{"url": "https://github.com/pgadmin-org/pgadmin4/issues/10647", "tags": ["issue-tracking"]}, {"url": "https://github.com/pgadmin-org/pgadmin4/commit/99f5606e2ebc7c94c7acdbab877ce7de54bfc756", "tags": ["patch"]}, {"url": "https://github.com/pgadmin-org/pgadmin4/commit/c4321b9968342716f34bc5f10de6cac3c0567e68", "tags": ["patch"]}, {"url": "https://github.com/pgadmin-org/pgadmin4/commit/730d1e783c339ec696a1f77f2eee6f4b52cb6c37", "tags": ["patch"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "Threat model: an operating-system user other than the pgAdmin service account who can write into a storage directory pgAdmin uses (a shared or network-mounted storage backend), and who also has, or works with, a pgAdmin account using it. An attacker with access to the host as the service account gains nothing from this flaw, so the Attack Vector is Local. Attack Complexity is High: the link must be planted and a race between the check and the open won. Confidentiality and Integrity are High because a file readable or writable by the pgAdmin account can be read (including loaded into a table) or overwritten; Availability is Low for a clobbered file or a hung request. Scope is Unchanged: the operations run with the authority pgAdmin already holds."}], "cvssV3_1": {"version": "3.1", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "LOW", "baseSeverity": "MEDIUM", "baseScore": 6.5, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L"}}, {"format": "CVSS", "scenarios": [{"lang": "en", "value": "Same reasoning as the CVSS 3.1 entry. AT:P for the race and for the write access to the storage backend obtained outside pgAdmin. VC:H/VI:H/VA:L as above; no subsequent-system impact."}], "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N", "baseScore": 7.3, "baseSeverity": "HIGH"}}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition", "cweId": "CWE-367", "type": "CWE"}, {"lang": "en", "description": "CWE-59 Improper Link Resolution Before File Access ('Link Following')", "cweId": "CWE-59", "type": "CWE"}]}], "credits": [{"lang": "en", "value": "MUTED CYBERSECURITY S.L. <cybersec@mut3dcybersecurity.com>", "type": "finder"}, {"lang": "en", "value": "Dave Page <dpage@pgadmin.org>", "type": "remediation developer"}, {"lang": "en", "value": "Hitesh Jambhale <hitesh.jambhale@enterprisedb.com>", "type": "remediation developer"}, {"lang": "en", "value": "Hitesh Jambhale <hitesh.jambhale@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": "2026-11-06T16:17:53.650844Z", "id": "CVE-2026-116250", "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": "2026-11-06T16:18:17.858Z"}}]}}

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VC:H/VI:H/VA:L as above; no subsequent-system impact."}]}], "affected": [{"repo": "https://github.com/pgadmin-org/pgadmin4", "vendor": "pgadmin.org", "modules": ["File Manager", "Import/Export Servers", "Backup", "Restore", "Import/Export Data"], "product": "pgAdmin 4", "versions": [{"status": "affected", "version": "0", "lessThan": "9.19", "versionType": "custom"}], "programFiles": ["https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/misc/file_manager/__init__.py", "https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/utils/__init__.py", "https://github.com/pgadmin-org/pgadmin4/blob/master/web/pgadmin/tools/import_export_servers/__init__.py"], "defaultStatus": "unaffected"}], "datePublic": "2026-10-29T00:00:00.000Z", "references": [{"url": "https://github.com/pgadmin-org/pgadmin4/issues/10647", "tags": ["issue-tracking"]}, {"url": "https://github.com/pgadmin-org/pgadmin4/commit/99f5606e2ebc7c94c7acdbab877ce7de54bfc756", "tags": ["patch"]}, {"url": "https://github.com/pgadmin-org/pgadmin4/commit/c4321b9968342716f34bc5f10de6cac3c0567e68", "tags": ["patch"]}, {"url": "https://github.com/pgadmin-org/pgadmin4/commit/730d1e783c339ec696a1f77f2eee6f4b52cb6c37", "tags": ["patch"]}], "descriptions": [{"lang": "en", "value": "In server mode pgAdmin 4 validates a path a user gives for a file in their storage directory with check_access_permission() and then opened it by name. 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