Skip to main content
VulnerabilityPublished

CVE-2026-41428: budibase · Improper Authentication

Affects budibaseSource GCVE Database

0
Compare

Not known to be exploited · CVSS 9.1 Critical : upgrade to 3.35.4 as a priority.

Data as of 12 Nov 2026, 01:05 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (GitHub_M)CVSS 3.19.1
Patch
Available – fixed in 3.35.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 24 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 11 Nov 2026.

What to do

Upgrade budibase to 3.35.4.

Affected software

ProductAffectedFixed in
Budibase budibaseAffected
  • <3.35.4
Fixed in
  • 3.35.4

AI-suggested

Upgrade Budibase to version 3.35.4 or later, where this authentication bypass vulnerability is fixed. No other mitigations are indicated by the vendor advisory.

Description

Budibase versions prior to 3.35.4 contain an improper authentication vulnerability due to unanchored regular expressions in the authenticated middleware. This flaw allows attackers to bypass authentication by appending a public endpoint path as a query parameter to protected endpoints. The issue is fixed in version 3.35.4.

References

Community reviews

Loading reviews…