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VulnerabilityPublished Updated

CVE-2026-100685: budibase server · Incorrect Authorization

Affects budibase serverSource CVE Database V5

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Not known to be exploited · CVSS 8.3 High : upgrade to 3.45.0 soon.

Data as of 8 Nov 2026, 23:24 UTC

CVSS 4.0 base score
8.3High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 18% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.45.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 Sep 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 9 Nov 2026.

What to do

Upgrade server and budibase/budibase to 3.45.0.

Affected software

ProductAffectedFixed in
budibaseserverAffected
  • <3.45.0
Fixed in
  • 3.45.0
GitHubbudibase/budibasepkg:github/budibase/budibaseOther threatsAffected
  • <3.45.0
Fixed in
  • 3.45.0

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

AI-suggested

Upgrade Budibase server to version 3.45.0 or later, where this authorization issue has been fixed. No other mitigation steps are indicated. Patch status is confirmed by the version boundary in the affectedVersions field.

Description

Budibase server versions before 3.45.0 contain an authorization flaw in the GET /api/chat-links endpoint. This flaw allows users with builder access in one workspace to enumerate chat identity link records across all workspaces within the same tenant. Sensitive information exposed includes user IDs and external chat service identifiers from other workspaces that the attacker should not have access to.

References

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