CVE-2026-12046: Two state-mutating endpoints in pgAdmin 4's SQL Editor blueprint -- DELETE /sqleditor/close/<trans_id> and POS

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CRITICAL 9.0REMOTEUPGRADE

CVE-2026-12046 is a critical-severity flaw (CVSS 9.0) affecting pgadmin 4. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Two state-mutating endpoints in pgAdmin 4's SQL Editor blueprint -- DELETE /sqleditor/close/<trans_id> and POST /sqleditor/initialize/sqleditor/update_connection/<sgid>/<sid>/<did> -- were the only routes in the module missing the @pga_login_required decorator. Both reach a pickle.loads sink on session['gridData'][<trans_id>]['command_obj']: the close endpoint via close_sqleditor_session(), and update_sqleditor_connection via check_transaction_st

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.0 (Critical)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 36%)
CISA exploited list	No
Weakness	CWE-306, CWE-502
Published	2026-06-19
Last modified	2026-10-25

Publisher (CNA): PostgreSQL · Vendor: pgadmin

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-19 00:16 UTCPublished CVE record published
2026-10-25 23:10 UTCUpdated Record last modified

pgadmin pgadmin 4 UPGRADE

Affected: >= 6.9 and < 9.16

Fixed in: 9.16

Safe to downgrade to: a release before 6.9

1. Check installed version

apt-cache policy pgadmin-4 || rpm -q pgadmin-4 || pgadmin-4 --version

2. UPGRADE to 9.16 (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.

3. If no update is available yet, DOWNGRADE to a release before 6.9 (Debian / Ubuntu)

apt-cache madison pgadmin-4 sudo apt install pgadmin-4=<VERSION_BEFORE_6.9> sudo apt-mark hold pgadmin-4

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list pgadmin-4 sudo dnf downgrade pgadmin-4-<VERSION_BEFORE_6.9> sudo dnf versionlock add pgadmin-4

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2026-12046?

pgadmin 4: upgrade to 9.16. Exact commands for each OS are on this page.

Is CVE-2026-12046 being exploited?

CVE-2026-12046 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-2026-12046 affect?

CVE-2026-12046 affects pgadmin 4. Severity is critical (CVSS 9.0). Two state-mutating endpoints in pgAdmin 4's SQL Editor blueprint -- DELETE /sqleditor/close/<trans_id> and POST /sqleditor/initialize/sqleditor/update_connection/<sgid>/<sid>/<did> -- were the only routes in the module missing the @pga_logi

How urgent is CVE-2026-12046?

Priority 52/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-12045 CRITICAL 9.0 UPGRADE Read-only transaction bypass in the pgAdmin 4 AI Assistant allows an attacker who can influence database conte
CVE-2026-12050 MEDIUM 4.3 UPGRADE SQL injection in pgAdmin 4's named restore point endpoint (POST /browser/server/restore_point/{gid}/{sid})
CVE-2026-17566 CRITICAL 9.9 UPGRADE pgAdmin 4's Import/Export Data tool builds a psql \copy (...) command line by interpolating a user-supplied SQ
CVE-2026-17346 HIGH 8.8 UPGRADE The fix for CVE-2026-12044 in pgAdmin 4 9.16 hardened qtLiteral and switched sixteen COMMENT ON / pgstattuple
CVE-2026-17349 CRITICAL 9.6 UPGRADE /misc/workspace/adhoc_connect_server, part of the Workspaces feature introduced in pgAdmin 4 9.0, when passed

References

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