The 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.
This issue affects pgAdmin 4: before 9.19.
Analysis and contextual insights are available on OpenCVE Cloud.
No solution or workaround provided in the CVE record.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
Sign in to view the affected projects.
No advisories yet.
Fri, 30 Oct 2026 22:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Pgadmin
Pgadmin pgadmin 4 |
|
| Vendors & Products |
Pgadmin
Pgadmin pgadmin 4 |
Fri, 30 Oct 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. The 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. This issue affects pgAdmin 4: before 9.19. | |
| Title | pgAdmin 4: libpq uses the pgAdmin service account's Kerberos credentials | |
| Weaknesses | CWE-1188 CWE-522 |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: PostgreSQL
Published:
Updated: 2026-10-30T19:55:15.101Z
Reserved: 2026-10-25T16:26:16.419Z
Link: CVE-2026-116244
No data.
Status : Received
Published: 2026-10-30T20:17:04.327
Modified: 2026-10-30T20:17:04.327
Link: CVE-2026-116244
No data.
OpenCVE Enrichment
Updated: 2026-10-30T22:00:15Z