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CVE-2026-116244: When a pgAdmin 4 connection was not meant to use a Kerberos user's delegated credentials, pgAdmin removed KRB5

34
Routine
HIGH 8.2UPGRADE

CVE-2026-116244 is a high-severity flaw (CVSS 8.2) affecting pgadmin 4. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 conn

Why this priority

  • High severity

A fixed release or distro patch exists.

Risk facts

CVSS score8.2 (High)
Attack vectorNetwork (remote)
Attack complexityHigh
Privileges neededLow
User interactionNone
EPSS exploit chance0.3% (top 80%)
CISA exploited listNo
WeaknessCWE-522, CWE-1188
Published2026-10-30
Last modified2026-11-04
Publisher (CNA): PostgreSQL · Vendor: pgadmin

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Last updated 2026-11-04 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

pgadmin pgadmin 4 UPGRADE
Affected: < 9.19
Fixed in: 9.19
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy pgadmin-4 || rpm -q pgadmin-4 || pgadmin-4 --version
2. UPGRADE to 9.19 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade pgadmin-4
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade pgadmin-4
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Advisories and coverage

Research and news

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-116244?

pgadmin 4: upgrade to 9.19. Exact commands for each OS are on this page.

Is CVE-2026-116244 being exploited?

CVE-2026-116244 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-116244 affect?

CVE-2026-116244 affects pgadmin 4. Severity is high (CVSS 8.2). 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 operati

How urgent is CVE-2026-116244?

Priority 34/100. High severity

Related CVEs

References

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