{"id":"GO-2026-6570","revision":null,"records":[{"revision":"2a79bdf7323d4f659dcb0c4dcf871ce8","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-76802","aliases":[],"title":"Nuclei: Arbitrary Command Execution via DAST Code Signature Bypass","description":"Nuclei is a vulnerability scanner built on a simple YAML-based DSL. From 3.0.0 until 3.10.0, the DAST template loading branch does not apply the unsigned code-template signature check before accepting a template that contains both a fuzzing: block and an unsigned code: block. When an operator enables -dast, an untrusted multiprotocol template can place an unsigned code request into the execution queue and run arbitrary shell commands even without -code or a valid cryptographic signature. The issue affects CLI DAST scans and SDK integrations that enable DAST while accepting attacker-supplied templates. This issue is fixed in version 3.10.0.","state":0,"publishedAt":"2026-09-22T16:47:00.36+00:00","modifiedAt":"2026-09-22T17:04:53.745+00:00","affected":[{"ecosystem":"Vendor product","name":"nuclei","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"projectdiscovery\",\n                    \"product\": \"nuclei\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 3.0.0, < 3.10.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","score":4.7,"severity":"MEDIUM"}],"references":["https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-jpf4-98qj-qr67","https://github.com/projectdiscovery/nuclei/pull/7472","https://github.com/projectdiscovery/nuclei/commit/1c440e755a97471c56fb0276ee8a8c4132974645","https://github.com/projectdiscovery/nuclei/releases/tag/v3.10.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-76802","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-76802","identifiers":["CVE-2026-76802"]},"retained":false,"historicalAffected":[]},{"revision":"9c2f7750f0b84583b7a812a5d542f0f7","observedAt":"2026-11-11T16:07:46.161+00:00","statement":{"source":"euvd","id":"EUVD-2026-84556","aliases":["CVE-2026-76802","GHSA-jpf4-98qj-qr67"],"title":"Nuclei is a vulnerability scanner built on a simple YAML-based DSL. 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This issue is fixed in version 3.10.0.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","score":4.7,"severity":null}],"references":["https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-jpf4-98qj-qr67","https://github.com/projectdiscovery/nuclei/pull/7472","https://github.com/projectdiscovery/nuclei/commit/1c440e755a97471c56fb0276ee8a8c4132974645","https://github.com/projectdiscovery/nuclei/releases/tag/v3.10.0"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-84556","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 22, 2026, 4:47:00 PM","dateUpdated":"Sep 22, 2026, 5:04:53 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. 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From 3.0.0 until 3.10.0, the DAST template loading branch does not apply the unsigned code-template signature check before accepting a template that contains both a fuzzing: block and an unsigned code: block. When an operator enables -dast, an untrusted multiprotocol template can place an unsigned code request into the execution queue and run arbitrary shell commands even without -code or a valid cryptographic signature. The issue affects CLI DAST scans and SDK integrations that enable DAST while accepting attacker-supplied templates. This issue is fixed in version 3.10.0.","state":0,"publishedAt":"2026-09-22T17:17:24.627+00:00","modifiedAt":"2026-09-24T21:20:08.527+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","score":4.7,"severity":"MEDIUM"}],"references":["https://github.com/projectdiscovery/nuclei/commit/1c440e755a97471c56fb0276ee8a8c4132974645","https://github.com/projectdiscovery/nuclei/pull/7472","https://github.com/projectdiscovery/nuclei/releases/tag/v3.10.0","https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-jpf4-98qj-qr67"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-76802","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-78"],"productCriteria":[],"sourceDates":{"published":"2026-09-22T17:17:24.627","lastModified":"2026-09-24T21:20:08.527"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-76802","identifiers":["CVE-2026-76802"]},"retained":false,"historicalAffected":[]},{"revision":"7cea9842425546e8a46857af0fe3f448","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-jpf4-98qj-qr67","aliases":["CVE-2026-76802","GO-2026-6570"],"title":"Nuclei: Arbitrary Command Execution via DAST Code Signature Bypass","description":"A vulnerability in Nuclei's DAST template loading path allows unsigned `code:` protocol templates to execute, bypassing the cryptographic signature requirement that is meant to prevent arbitrary command execution from untrusted templates.\n\n**Affected Component**\n\nThe issue is in the template loader's DAST loading branch. When `-dast` is enabled and a template contains a `fuzzing:` block, the loader accepted the template through a code path that omitted the unsigned-code-template signature check present in the normal loading branch.\n\n**Description**\n\nNuclei requires `code:` protocol templates to be cryptographically signed before execution. Unsigned code templates are normally skipped with a warning. However, when a template combined a `fuzzing:` block (making it DAST-eligible) with an unsigned `code:` block, enabling `-dast` routed the template through the DAST loader branch, which did not enforce signature verification.\n\nFor multiprotocol templates containing both HTTP and `code:` blocks, the unsigned code request was included in the execution queue regardless of whether `-code` was set. This allowed arbitrary shell command execution from an unsigned `code:` block with only `-dast` enabled.\n\n> [!NOTE]\nBoth DAST mode (`-dast`) and code-protocol templates are disabled by default. Code templates normally require both the `-code` flag and a valid template signature. This issue bypassed the signature and `-code` controls only when `-dast` was explicitly enabled.\n\n**Affected Users**\n\n- **CLI users** running DAST/fuzzing scans (`-dast`) with untrusted or attacker-supplied templates that contain both `fuzzing:` and `code:` blocks.\n- **SDK users** who integrate Nuclei with DAST mode enabled and allow end users to supply custom templates.\n\n**Patches**\n\n- The vulnerability is fixed in Nuclei v3.10.0. Upgrading is strongly recommended.\n- Fix reference: https://github.com/projectdiscovery/nuclei/pull/7472\n\n**Mitigation**\n\nUpgrade to Nuclei v3.10.0, where code template signature verification is enforced before DAST loading.\n\nIn the meantime, avoid running DAST scans with untrusted templates.\n\n**Workarounds**\n\nIf upgrading is not an option, do not use `-dast` with templates from unverified sources.\n\n**Acknowledgments**\n\nThanks to @daffainfo for reporting this issue.","state":0,"publishedAt":"2026-09-22T20:37:16+00:00","modifiedAt":"2026-10-01T20:56:12.2096325+00:00","affected":[{"ecosystem":"Go","name":"github.com/projectdiscovery/nuclei/v3","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"3.0.0"},{"kind":"fixed","version":"3.10.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-jpf4-98qj-qr67","https://nvd.nist.gov/vuln/detail/CVE-2026-76802","https://github.com/projectdiscovery/nuclei/pull/7472","https://github.com/projectdiscovery/nuclei/commit/1c440e755a97471c56fb0276ee8a8c4132974645","https://github.com/projectdiscovery/nuclei","https://github.com/projectdiscovery/nuclei/releases/tag/v3.10.0"],"sourceUrl":"https://github.com/advisories/GHSA-jpf4-98qj-qr67","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-jpf4-98qj-qr67","identifiers":["GHSA-jpf4-98qj-qr67","CVE-2026-76802","GO-2026-6570"]},"retained":false,"historicalAffected":[]},{"revision":"9aeaf0961b5d45a79e3a623524ea3fc6","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-6570","aliases":["CVE-2026-76802","GHSA-jpf4-98qj-qr67"],"title":"Nuclei: Arbitrary Command Execution via DAST Code Signature Bypass in github.com/projectdiscovery/nuclei","description":"Nuclei: Arbitrary Command Execution via DAST Code Signature Bypass in github.com/projectdiscovery/nuclei","state":0,"publishedAt":"2026-10-01T20:23:38+00:00","modifiedAt":"2026-10-01T20:45:14.8811066+00:00","affected":[{"ecosystem":"Go","name":"github.com/projectdiscovery/nuclei","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/projectdiscovery/nuclei/v2","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"Go","name":"github.com/projectdiscovery/nuclei/v3","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"3.0.0"},{"kind":"fixed","version":"3.10.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-jpf4-98qj-qr67","https://nvd.nist.gov/vuln/detail/CVE-2026-76802","https://github.com/projectdiscovery/nuclei/commit/1c440e755a97471c56fb0276ee8a8c4132974645","https://github.com/projectdiscovery/nuclei/pull/7472","https://github.com/projectdiscovery/nuclei/releases/tag/v3.10.0"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-6570","license":"OSV · upstream source license applies","key":"osv:GO-2026-6570","identifiers":["GO-2026-6570","CVE-2026-76802","GHSA-jpf4-98qj-qr67"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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