{"answers":{"affected":"5 open source packages ship an affected version, including github.com/projectdiscovery/nuclei/v3, github.com/projectdiscovery/nuclei and github.com/projectdiscovery/nuclei/v2.","exploited":"There is no known exploitation of CVE-2026-76805 in the wild and no public exploit code.","fix":"Upgrade github.com/projectdiscovery/nuclei/v3 to 3.10.0 or later.","what":"CVE-2026-76805 is a medium-severity vulnerability in projectdiscovery nuclei, published on 22 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-76805 and fix it if it is affected.\n\nWhat it is: CVE-2026-76805 is a medium-severity vulnerability in projectdiscovery nuclei, published on 22 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-76805 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/projectdiscovery/nuclei/v3 (Go): affected from 3.0.0; fixed in 3.10.0\n- github.com/projectdiscovery/nuclei/v3 (Go): affected from 3.0.0; fixed in 3.10.0\n- github.com/projectdiscovery/nuclei/v3 (Go): affected from 3.0.0; fixed in 3.10.0\n- github.com/projectdiscovery/nuclei (Go): affected all versions; no fix listed\n- github.com/projectdiscovery/nuclei/v2 (Go): affected all versions; no fix listed\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-76805/ (Markdown: https://insights.sbomify.com/CVE-2026-76805/index.md)","id":"CVE-2026-76805","markdown":"https://insights.sbomify.com/CVE-2026-76805/index.md","name":"CVE-2026-76805","record":{"aliases":["GHSA-jpvm-9frm-hjcq","GO-2026-6571"],"analysis":{"component_type":"developer_tool","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"Vulnerability scanner","requires_auth":"none","summary":"A malicious scan target can disclose scanner-host environment variables if the -env-vars flag is enabled during DAST or fuzz operations.","user_interaction":"required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"Nuclei is a vulnerability scanner built on a simple YAML-based DSL. From 3.0.0 until 3.10.0, the DAST/fuzz payload path in pkg/fuzz/parts.go can evaluate substituted runtime data more than once, creating a second evaluation pass that allows response content captured by an internal: true extractor in one protocol step to be reinterpreted as template syntax in a later fuzz step. This vulnerability is an incomplete fix for CVE-2026-41645: the prior remediation made expressions.Evaluate() single-pass within one call but did not prevent DAST/fuzz callers from evaluating substituted output again. When -env-vars is enabled, a malicious scan target can return marker-shaped content that resolves against the template variable map and discloses scanner-host environment variables such as credentials, API keys, or tokens. The vulnerability requires a multi-step DAST or fuzz template, response data reused through an internal extractor, and explicit environment-variable expansion; users who do not enable -env-vars are not affected by the sensitive-information disclosure. This issue is fixed in version 3.10.0.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Nuclei: Environment Variable Disclosure via Response-Derived Data in DAST/Fuzz Mode","id":"CVE-2026-76805","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":5,"n_references":4,"next":{"headline":"Netty: MQTT Topic Name and Client ID Validation Bypass","id":"CVE-2026-76816"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/projectdiscovery/nuclei","purl":"pkg:golang/github.com/projectdiscovery/nuclei","source":"GO-2026-6571"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/projectdiscovery/nuclei/v2","purl":"pkg:golang/github.com/projectdiscovery/nuclei/v2","source":"GO-2026-6571"},{"ecosystem":"Go","fixed":["3.10.0"],"introduced":["3.0.0"],"last_affected":[],"package":"github.com/projectdiscovery/nuclei/v3","purl":null,"source":"GHSA-jpvm-9frm-hjcq"},{"ecosystem":"Go","fixed":["3.10.0"],"introduced":["3.0.0"],"last_affected":[],"package":"github.com/projectdiscovery/nuclei/v3","purl":"pkg:golang/github.com/projectdiscovery/nuclei/v3","source":"GHSA-jpvm-9frm-hjcq"},{"ecosystem":"Go","fixed":["3.10.0"],"introduced":["3.0.0"],"last_affected":[],"package":"github.com/projectdiscovery/nuclei/v3","purl":"pkg:golang/github.com/projectdiscovery/nuclei/v3","source":"GO-2026-6571"}],"prev":{"headline":"Nuclei: Local File Read via Workflow File-Protocol Gate Bypass","id":"CVE-2026-76804"},"products":["nuclei"],"published":"2026-09-22","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-22","vendors":["projectdiscovery"]},"summary":"A malicious scan target can disclose scanner-host environment variables if the -env-vars flag is enabled during DAST or fuzz operations.","url":"https://insights.sbomify.com/CVE-2026-76805/"}