CVE-2026-49406

Description

Deno is a JavaScript, TypeScript, and WebAssembly runtime. Prior to 2.7.12, when Deno was run in BYONM mode (nodeModulesDir: "manual"), the module resolver did not validate that a package's resolved entrypoint stayed within its node_modules/<pkg>/ directory. A malicious package.json whose main field contained .. segments was able to resolve to an arbitrary path on disk, and the resolver then read that file without consulting the --allow-read allowlist. This let a require("evil-pkg") call return the contents of a file that a direct Deno.readTextFileSync(...) call would have been blocked from reading. This vulnerability is fixed in 2.7.12.

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Produits concernés

• denoland deno
• Deno deno

Scores CVSS

Faiblesses (CWE)

• CWE-22

Références

• https://github.com/denoland/deno/security/advisories/GHSA-968w-xfqw-vp9q ExploitMitigationVendor Advisory
• https://github.com/denoland/deno/security/advisories/GHSA-968w-xfqw-vp9q ExploitMitigationVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories