CVE-2025-30354

Bruno ignores Safe-Mode in Asserts expressions

State: Published
Severity: 8.7 High
Published: Apr 1, 2025
Updated: Apr 2, 2025
Reserved: Mar 21, 2025

Description

Bruno is an open source IDE for exploring and testing APIs. A bug in the assertion runtime caused assert expressions to run in Developer Mode, even if Safe Mode was selected. The bug resulted in the sandbox settings to be ignored for the particular case where a single request is run/sent. This vulnerability's attack surface is limited strictly to scenarios where users import collections from untrusted or malicious sources. The exploit requires deliberate action from the user—specifically, downloading and opening an externally provided malicious Bruno collection. The vulnerability is fixed in 1.39.1.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H	GitHub_M

Weaknesses

CWE-942 Permissive Cross-domain Policy with Untrusted Domains

Affected Products

Product	Versions
brunousebruno	< 1.39.1Affected

References

https://github.com/usebruno/bruno/security/advisories/GHSA-hffg-7v8v-79j3

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