CVE-2025-48934 (GCVE-0-2025-48934)
Vulnerability from cvelistv5
Published
2025-06-04 19:21
Modified
2025-06-04 19:32
Severity ?
5.5 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
CWE
  • CWE-201 - Insertion of Sensitive Information Into Sent Data
Summary
Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to versions 2.1.13 and 2.2.13, the `Deno.env.toObject` method ignores any variables listed in the `--deny-env` option of the `deno run` command. When looking at the documentation of the `--deny-env` option this might lead to a false impression that variables listed in the option are impossible to read. Software relying on the combination of both flags to allow access to most environment variables except a few sensitive ones will be vulnerable to malicious code trying to steal secrets using the `Deno.env.toObject()` method. Versions 2.1.13 and 2.2.13 contains a patch.
References
Impacted products
Vendor Product Version
denoland deno Version: < 2.1.13
Version: >= 2.2.0, < 2.2.13
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