CVE-2026-12047: HTML injection in pgAdmin 4's cloud deployment module

Routine

LOW 3.5UPGRADE

CVE-2026-12047 is a low-severity flaw (CVSS 3.5) affecting pgadmin 4. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

HTML injection in pgAdmin 4's cloud deployment module. The verify_credentials, deploy, regions, and update-server endpoints under /rds/, /azure/, /google/, and the top-level /cloud/ blueprint propagated AWS / Azure / Google SDK exception text — and the related file-resolution and database-commit exception text — into the JSON response body (the info and errormsg fields) without HTML-encoding. The Cloud Wizard frontend rendered these strings throu

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	3.5 (Low)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.2% (top 87%)
CISA exploited list	No
Weakness	CWE-79, CWE-116
Published	2026-06-19
Last modified	2026-10-26

Publisher (CNA): PostgreSQL · Vendor: pgadmin

Last updated 2026-10-26 · 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
2026-10-26 11:10 UTCUpdated Record last modified

pgadmin pgadmin 4 UPGRADE

Affected: >= 6.6 and < 9.16

Fixed in: 9.16

Safe to downgrade to: a release before 6.6

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 6.6 (Debian / Ubuntu)

apt-cache madison pgadmin-4 sudo apt install pgadmin-4=<VERSION_BEFORE_6.6> 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_6.6> 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-2026-12047?

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

Is CVE-2026-12047 being exploited?

CVE-2026-12047 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-2026-12047 affect?

CVE-2026-12047 affects pgadmin 4. Severity is low (CVSS 3.5). HTML injection in pgAdmin 4's cloud deployment module. The verify_credentials, deploy, regions, and update-server endpoints under /rds/, /azure/, /google/, and the top-level /cloud/ blueprint propagated AWS / Azure / Google SDK exception te

How urgent is CVE-2026-12047?

Priority 15/100. No elevated risk signals yet.

Software pages

Azure vulnerabilities · AWS vulnerabilities

Related CVEs

CVE-2026-12044 HIGH 8.8 UPGRADE SQL injection in pgAdmin 4 across every dialog template that renders ``COMMENT ON ..
CVE-2026-12048 CRITICAL 9.3 UPGRADE Stored cross-site scripting in pgAdmin 4's error-rendering and plan-node-rendering paths
CVE-2026-12049 MEDIUM 4.3 UPGRADE Open redirect in pgAdmin 4's multi-factor authentication flow
CVE-2026-12046 CRITICAL 9.0 UPGRADE Two state-mutating endpoints in pgAdmin 4's SQL Editor blueprint -- DELETE /sqleditor/close/<trans_id> and POS
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

References

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