CVE-2026-45717Public exploitNetwork attack vector

Authenticated SSRF via underprivileged datasource configuration overwrite

Published May 27, 2026 · Updated May 27, 2026

Missing authorization in Budibase before 3.38.1 allows remote authenticated users to redirect datasource connections to internal services. The PUT /api/datasources/:datasourceId route requires only TABLE/READ, and its controller persists attacker-supplied host, port, credential, and URL fields without a builder check. BASIC-role app access is sufficient to probe or interact with internal services and to disrupt queries that use the altered datasource.

CVSS severity8.8
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Budibase before 3.38.1 allows remote authenticated users to redirect datasource connections to internal services. The PUT /api/datasources/:datasourceId route requires only TABLE/READ, and its controller persists attacker-supplied host, port, credential, and URL fields without a builder check. BASIC-role app access is sufficient to probe or interact with internal services and to disrupt queries that use the altered datasource.

The record

CVE
CVE-2026-45717
Published
May 27, 2026
Updated
May 27, 2026
Vendor
Budibase
Product
Budibase
Classifications
CWE-862, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 27, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 3.38.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Budibase · Budibaseversion=< 3.38.1

Published CVSS scores

8.8GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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