{"answers":{"affected":"3 open source packages ship an affected version, including github.com/gohugoio/hugo. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-58402 in the wild and no public exploit code.","fix":"Upgrade github.com/gohugoio/hugo to 0.163.3 or later.","what":"CVE-2026-58402 is a medium-severity cross-site scripting vulnerability in gohugoio hugo, published on 6 Jul 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-58402 and fix it if it is affected.\n\nWhat it is: CVE-2026-58402 is a medium-severity cross-site scripting vulnerability in gohugoio hugo, published on 6 Jul 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-58402 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/gohugoio/hugo (Go): affected from 0.60.0; fixed in 0.163.3\n- github.com/gohugoio/hugo (Go): affected from 0.60.0; fixed in 0.163.3\n- github.com/gohugoio/hugo (Go): affected from 0.60.0; fixed in 0.163.3\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-2026-58402/ (Markdown: https://insights.sbomify.com/CVE-2026-58402/index.md)","id":"CVE-2026-58402","markdown":"https://insights.sbomify.com/CVE-2026-58402/index.md","name":"CVE-2026-58402","record":{"aliases":["DEBIAN-CVE-2026-58402","GHSA-q76j-gcg9-vxc6","GO-2026-5569","JLSEC-2026-796","MINI-7gfj-7qmx-h9j9","MINI-7mg8-q87g-wqv4","MINI-gg3c-m7gp-rhx9","MINI-wp6m-28fv-hj56","UBUNTU-CVE-2026-58402"],"analysis":{"component_type":"developer_tool","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Hugo static site generator","requires_auth":"low_privilege","summary":"Attackers can inject malicious scripts via unescaped code-fence language attributes in Hugo-generated pages, leading to cross-site scripting.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"hugo","vendor":"gohugo"}],"cvss":{"score":5.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Hugo is a static site generator. From 0.60.0 until 0.163.3, Hugo's default code-block renderer wrote the Markdown code-fence language or info-string into the code class=\"language-…\" data-lang=\"…\" wrapper without HTML escaping. A fence info-string containing a quote and a script payload breaks out of the attribute and injects a live script element. This issue is fixed in 0.163.3.","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":"Hugo default code block renderer XSS via unescaped code-fence language","id":"CVE-2026-58402","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"xss","year":"2026"},"n_packages":3,"n_references":4,"next":{"headline":"Hugo symlink confinement bypass in os.ReadFile","id":"CVE-2026-58403"},"packages":[{"ecosystem":"Go","fixed":["0.163.3"],"introduced":["0.60.0"],"last_affected":[],"package":"github.com/gohugoio/hugo","purl":null,"source":"GHSA-q76j-gcg9-vxc6"},{"ecosystem":"Go","fixed":["0.163.3"],"introduced":["0.60.0"],"last_affected":[],"package":"github.com/gohugoio/hugo","purl":"pkg:golang/github.com/gohugoio/hugo","source":"GHSA-q76j-gcg9-vxc6"},{"ecosystem":"Go","fixed":["0.163.3"],"introduced":["0.60.0"],"last_affected":[],"package":"github.com/gohugoio/hugo","purl":"pkg:golang/github.com/gohugoio/hugo","source":"GO-2026-5569"}],"prev":{"headline":"GeoNetwork vulnerable to Remote Code Execution via unsafe Saxon XSLT processor configuration in formatter","id":"CVE-2026-58400"},"products":["hugo"],"published":"2026-07-06","related":[{"cvss_score":9.3,"headline":"Hugo 0.162.0 to 0.164.x - Node Permission Model Bypass via Default TailwindCSS Child-Process Grant","id":"CVE-2026-75926","kev_date_added":null,"published":"2026-08-18"},{"cvss_score":8.7,"headline":"Hugo v0.161.0 to v0.165.0 Arbitrary File Read via Symlinks","id":"CVE-2026-100690","kev_date_added":null,"published":"2026-09-26"},{"cvss_score":8.7,"headline":"Hugo before v0.166.0 Path Traversal via Symlinked Mount Roots","id":"CVE-2026-100692","kev_date_added":null,"published":"2026-09-26"},{"cvss_score":8.6,"headline":"Hugo v0.162.0 before v0.166.0 IP-literal Deny Rule Bypass","id":"CVE-2026-100693","kev_date_added":null,"published":"2026-09-26"},{"cvss_score":7.7,"headline":"Hugo can execute a binary from the current directory on Windows","id":"CVE-2020-26284","kev_date_added":null,"published":"2020-12-21"},{"cvss_score":6.9,"headline":"Hugo: Symlink confinement bypass in resources.Get","id":"CVE-2026-50135","kev_date_added":null,"published":"2026-07-06"},{"cvss_score":6.3,"headline":"Hugo: security.http.urls allow-list bypass via HTTP redirects","id":"CVE-2026-50134","kev_date_added":null,"published":"2026-07-06"}],"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":"US public information, NVD API terms","name":"NVD"},{"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":"2026-07-06","vendors":["gohugoio"]},"summary":"Attackers can inject malicious scripts via unescaped code-fence language attributes in Hugo-generated pages, leading to cross-site scripting.","url":"https://insights.sbomify.com/CVE-2026-58402/"}