November 14, 2026

CVE Watchtower

CVE-2026-100687budibase server Exposure of Sensitive Information to an Unauthorized Actor

NVD

Vulnerability Summary

Budibase Server before 3.45.0 fails to redact plaintext datasource credentials before broadcasting external table updates to the Builder collaboration websocket room. Attackers with Builder access can intercept unredacted datasource objects containing database passwords and API keys by observing table save or delete operations.
Severity Level
HIGH(7.0)
Published Date
Sep 26, 2026
Last Modified
Oct 8, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.26%Probability
Root Weakness (CWE)
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor ↗
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CVSS v4.0 Base Metrics — Score 7.0 (HIGH)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredHigh
User InteractionNone
Confidentiality (Vulnerable System)High
Integrity (Vulnerable System)Low
Availability (Vulnerable System)None
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)None
Show CVSS v3.x metrics (score 5.5)
CVSS v3.1 Base Metrics — Score 5.5 (MEDIUM)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityLow
AvailabilityNone

Affected & Patched Versions

Affected Versions
  • budibase server < 3.45.0
Patched Versions
  • budibase server 3.45.0

What to do

Plan remediation soon. No exploitation is confirmed yet, but the severity is high.

  1. Check whether you run budibase server and which version.
  2. Update to a patched version listed above, then confirm the new version.

Timeline

  • Sep 26, 2026Published
  • Oct 8, 2026Record last modified

Score, severity and exploitation changes are tracked from the day Watchtower started logging them.

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External References

Data last checked: Nov 14, 2026 03:22 UTC