{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-49406", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-29T19:08:01.257Z", "datePublished": "2026-06-23T17:19:15.767Z", "dateUpdated": "2026-06-23T17:50:19.392Z"}, "containers": {"cna": {"title": "Deno: BYONM module resolution allows `package.json` main path traversal to bypass `--allow-read` restrictions", "problemTypes": [{"descriptions": [{"cweId": "CWE-22", "lang": "en", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/denoland/deno/security/advisories/GHSA-968w-xfqw-vp9q", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/denoland/deno/security/advisories/GHSA-968w-xfqw-vp9q"}], "affected": [{"vendor": "denoland", "product": "deno", "versions": [{"version": "< 2.7.12", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-23T17:19:15.767Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-968w-xfqw-vp9q", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/denoland/deno/security/advisories/GHSA-968w-xfqw-vp9q", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-23T17:49:51.311695Z", "id": "CVE-2026-49406", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-23T17:50:19.392Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-49406", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-23T17:49:51.311695Z"}}}], "references": [{"url": "https://github.com/denoland/deno/security/advisories/GHSA-968w-xfqw-vp9q", "tags": ["exploit"]}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-23T17:50:09.415Z"}}], "cna": {"title": "Deno: BYONM module resolution allows `package.json` main path traversal to bypass `--allow-read` restrictions", "source": {"advisory": "GHSA-968w-xfqw-vp9q", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}], "affected": [{"vendor": "denoland", "product": "deno", "versions": [{"status": "affected", "version": "< 2.7.12"}]}], "references": [{"url": "https://github.com/denoland/deno/security/advisories/GHSA-968w-xfqw-vp9q", "name": "https://github.com/denoland/deno/security/advisories/GHSA-968w-xfqw-vp9q", "tags": ["x_refsource_CONFIRM"]}], "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-22", "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-23T17:19:15.767Z"}}}, "cveMetadata": {"cveId": "CVE-2026-49406", "state": "PUBLISHED", "dateUpdated": "2026-06-23T17:50:19.392Z", "dateReserved": "2026-05-29T19:08:01.257Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-06-23T17:19:15.767Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{}

{}