EUVD-2025-16913
GHSA-7w8p-chxq-2789
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Lifecycle Timeline
5Description
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.
Analysis
A security vulnerability in Deno (CVSS 5.3). Risk factors: public PoC available. Vendor patch is available.
Technical Context
CWE-201 (Information Exposure via Sent Data). Affects Deno.
Affected Products
['Deno']
Remediation
Apply the vendor-supplied patch immediately.
Priority Score
Vendor Status
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External POC / Exploit Code
Leaving vuln.today