CVE - CVE-2025-48934

CVE-ID
CVE-2025-48934	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://docs.deno.com/api/deno/~/Deno.Env.toObject URL:https://docs.deno.com/api/deno/~/Deno.Env.toObject MISC:https://docs.deno.com/runtime/fundamentals/security/#environment-variables URL:https://docs.deno.com/runtime/fundamentals/security/#environment-variables MISC:https://github.com/denoland/deno/commit/2959e083912420988066a001c2b2d6732a1b562f URL:https://github.com/denoland/deno/commit/2959e083912420988066a001c2b2d6732a1b562f MISC:https://github.com/denoland/deno/commit/946ccda1aa19a00c478a5e6826b75053b050d753 URL:https://github.com/denoland/deno/commit/946ccda1aa19a00c478a5e6826b75053b050d753 MISC:https://github.com/denoland/deno/pull/29079 URL:https://github.com/denoland/deno/pull/29079 MISC:https://github.com/denoland/deno/security/advisories/GHSA-7w8p-chxq-2789 URL:https://github.com/denoland/deno/security/advisories/GHSA-7w8p-chxq-2789
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20250528	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250528)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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