CVE-2026-54351: Budibase is an open-source low-code platform

Q: How do I fix CVE-2026-54351?

budibase: upgrade to 3.39.9. Exact commands for each OS are on this page.

Q: Is CVE-2026-54351 being exploited?

CVE-2026-54351 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-54351 affect?

CVE-2026-54351 affects budibase. Severity is high (CVSS 8.2). Budibase is an open-source low-code platform. Prior to 3.39.9, the webhook trigger endpoint in Budibase is publicly accessible and passes the full HTTP request body into automation execution parameters. A mass assignment vulnerability in ex

Q: How urgent is CVE-2026-54351?

Priority 44/100. High severity; Public exploit reference

This month

HIGH 8.2UPGRADE

CVE-2026-54351 is a high-severity flaw (CVSS 8.2) affecting budibase. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Budibase is an open-source low-code platform. Prior to 3.39.9, the webhook trigger endpoint in Budibase is publicly accessible and passes the full HTTP request body into automation execution parameters. A mass assignment vulnerability in externalTrigger() allows an attacker to overwrite the internal appId property by including it in the webhook POST body. When the automation is processed asynchronously (the default path for webhooks without a col

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.2 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 60%)
CISA exploited list	No
Weakness	CWE-915
Published	2026-06-26
Last modified	2026-06-30

Publisher (CNA): GitHub, Inc. · Vendor: budibase

Last updated 2026-06-30 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-26 21:16 UTCPublished CVE record published
2026-06-30 19:52 UTCUpdated Record last modified

budibase budibase UPGRADE

Affected: < 3.39.9

Fixed in: 3.39.9

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy budibase || rpm -q budibase || budibase --version

2. UPGRADE to 3.39.9 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade budibase

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade budibase

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2026-54351?

budibase: upgrade to 3.39.9. Exact commands for each OS are on this page.

Is CVE-2026-54351 being exploited?

CVE-2026-54351 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-2026-54351 affect?

CVE-2026-54351 affects budibase. Severity is high (CVSS 8.2). Budibase is an open-source low-code platform. Prior to 3.39.9, the webhook trigger endpoint in Budibase is publicly accessible and passes the full HTTP request body into automation execution parameters. A mass assignment vulnerability in ex

How urgent is CVE-2026-54351?

Priority 44/100. High severity; Public exploit reference

Related CVEs

CVE-2026-54350 CRITICAL 10.0 UPGRADE Budibase is an open-source low-code platform
CVE-2026-54353 HIGH 8.5 UPGRADE Budibase is an open-source low-code platform
CVE-2026-54352 CRITICAL 9.6 UPGRADE Budibase is an open-source low-code platform
CVE-2026-50137 CRITICAL 9.4 UPGRADE Budibase is an open-source low-code platform
CVE-2026-50136 HIGH 7.4 UPGRADE Budibase is an open-source low-code platform

References

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