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THREATINT
PUBLISHED

CVE-2025-30354

Bruno ignores Safe-Mode in Asserts expressions



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.

Reserved 2025-03-21 | Published 2025-04-01 | Updated 2025-04-02 | Assigner GitHub_M


HIGH: 8.7CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Problem types

CWE-942: Permissive Cross-domain Policy with Untrusted Domains

Product status

< 1.39.1
affected

References

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

cve.org (CVE-2025-30354)

nvd.nist.gov (CVE-2025-30354)

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