Is CVE-2026-48146 actively exploited?

No active exploitation of CVE-2026-48146 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-48146 be exploited remotely?

Yes. CVE-2026-48146 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-48146?

CVE-2026-48146 has a CVSS score of 7.7 (HIGH).

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HIGH

CVE-2026-48146

CWE-918Published: May 27, 2026· Updated: May 28, 2026

7.7

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.6th

Official Description

Budibase is an open-source low-code platform. Prior to 3.39.0, the OAuth2 token fetch function in packages/server/src/sdk/workspace/oauth2/utils.ts uses raw fetch(config.url) with no SSRF protection. The safe wrapper fetchWithBlacklist() exists in the same codebase and is used in every other outbound HTTP call (automation steps, plugin downloads, object store), but was not applied to the OAuth2 token endpoint. A user with BUILDER role can point the OAuth2 token URL to internal services (CouchDB, cloud metadata) to exfiltrate sensitive data. This vulnerability is fixed in 3.39.0.

NVD Source

Technical Analysis

CVE-2026-48146 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.7.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.