{"id":"JLSEC-2026-109","summary":"Deno run with --allow-read and --deny-read flags results in allowed","details":"Deno is a JavaScript, TypeScript, and WebAssembly runtime. Starting in version 1.41.3 and prior to versions 2.1.13, 2.2.13, and 2.3.2, `deno run --allow-read --deny-read main.ts` results in allowed, even though 'deny' should be stronger. The result is the same with all global unary permissions given as `--allow-* --deny-*`. This only affects a nonsensical combination of flags, so there shouldn't be a real impact on the userbase. Users may upgrade to version 2.1.13, 2.2.13, or 2.3.2 to receive a patch.","modified":"2026-04-14T13:31:34.294359049Z","published":"2026-04-14T13:10:46.494Z","upstream":["CVE-2025-48888","EUVD-2025-16912","GHSA-xqxc-x6p3-w683"],"database_specific":{"license":"CC-BY-4.0","sources":[{"published":"2025-06-04T20:15:23.977Z","modified":"2025-07-02T14:05:20.353Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2025-48888","imported":"2026-04-14T12:58:55.127Z","id":"CVE-2025-48888","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2025-48888"},{"published":"2025-06-04T21:13:44Z","modified":"2025-07-02T18:29:57Z","id":"GHSA-xqxc-x6p3-w683","url":"https://api.github.com/advisories/GHSA-xqxc-x6p3-w683","imported":"2026-04-14T12:58:59.043Z","html_url":"https://github.com/advisories/GHSA-xqxc-x6p3-w683"},{"published":"2025-06-04T19:15:55Z","modified":"2025-06-04T19:32:53Z","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2025-16912","imported":"2026-04-14T12:58:57.176Z","id":"EUVD-2025-16912","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-16912"}]},"references":[{"type":"WEB","url":"https://github.com/denoland/deno/commit/2f0fae9d9071dcaf0a689bc7097584b1b9ebc8db"},{"type":"WEB","url":"https://github.com/denoland/deno/commit/9d665572d3cd39f997e29e6daac7c1102fc5c04f"},{"type":"WEB","url":"https://github.com/denoland/deno/commit/ef315b56c26c9ef5f25284a5100d2ed525a148cf"},{"type":"WEB","url":"https://github.com/denoland/deno/pull/22894"},{"type":"WEB","url":"https://github.com/denoland/deno/pull/29213"},{"type":"WEB","url":"https://github.com/denoland/deno/security/advisories/GHSA-xqxc-x6p3-w683"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-48888"},{"type":"WEB","url":"https://github.com/advisories/GHSA-xqxc-x6p3-w683"}],"affected":[{"package":{"name":"Deno_jll","ecosystem":"Julia","purl":"pkg:julia/Deno_jll?uuid=04572ae6-984a-583e-9378-9577a1c2574d"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2.0.0+0"},{"fixed":"2.6.3+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-109.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P"}],"credits":[{"name":"nayeemrmn","contact":["https://github.com/nayeemrmn"],"type":"REPORTER"}]}