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VulnerabilityPublished Updated

CVE-2026-73617: budibase server · Improper Neutralization of Special Elements in Data Query Logic

Affects budibase serverSource CVE Database V5

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Not known to be exploited · CVSS 7.1 High : upgrade to 3.40.0 soon.

Data as of 12 Nov 2026, 23:24 UTC

CVSS 4.0 base score
7.1High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 28% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.40.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Aug 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 13 Nov 2026.

What to do

Upgrade server and budibase/budibase to 3.40.0.

Affected software

ProductAffectedFixed in
budibaseserverAffected
  • <3.40.0
Fixed in
  • 3.40.0
GitHubbudibase/budibasepkg:github/budibase/budibaseOther threatsAffected
  • <3.40.0
Fixed in
  • 3.40.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

If you cannot patch yet, users should avoid using vulnerable versions prior to 3.40.0 or implement strict input validation and operator filtering on MongoDB queries to prevent injection.

Description

Budibase before 3.40.0 contains a NoSQL injection vulnerability in the MongoDB datasource integration where user-supplied parameters are enriched with handlebars using noEscaping: true and parsed without operator filtering. Attackers can inject MongoDB operators through query parameters to bypass per-user access controls, read arbitrary documents, execute JavaScript via $where operators, or modify collections through update and delete operations.

References

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