GSSAPI Authentication Vulnerability in pgAdmin 4 by pgAdmin Organization
CVE-2026-116244

7.1HIGH

Key Information:

Vendor

Pgadmin.org

Status
Pgadmin 4
Vendor
CVE Published:
30 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-116244?

An authentication bypass vulnerability in pgAdmin 4 allows unauthorized users to connect using the service account's Kerberos credentials. This flaw arises due to improper handling of the KRB5CCNAME environment variable when a connection is not intended to use delegated Kerberos credentials. As a result, libpq can respond to GSSAPI authentication requests using the service account's ticket, regardless of the user attempting to connect. This vulnerability impacts any pgAdmin 4 versions prior to 9.19, necessitating immediate attention for users operating such versions to mitigate the risk of unauthorized access.

Affected Version(s)

pgAdmin 4 0 < 9.19

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-116244
Created by googlesky

References

https://github.com/pgadmin-org/pgadmin4/issues/10655
issue-tracking
https://github.com/pgadmin-org/pgadmin4/commit/145e511f05...
patch

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dave Page <dpage@pgadmin.org>
Kundan Sable <kundan.sable@enterprisedb.com>
Hitesh Jambhale <hitesh.jambhale@enterprisedb.com>
Ashesh Vashi <ashesh.vashi@enterprisedb.com>
.