cvedb.io
CVE-2025-48934
MEDIUM · CVSS 5.3
EPSS exploitation probability: 0%
Published 2025-06-04T20:15:24.163 · Last modified 2026-06-17T09:30:30.597

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.

Affected products

deno — deno

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.