{"id":"CVE-2026-35166","state":"PUBLISHED","title":"Hugo does not properly escape some Markdown links","description":"Hugo is a static site generator. From 0.60.0 to before 0.159.2, links and image links in the default markdown to HTML renderer are not properly escaped. Hugo users who trust their Markdown content or have custom render hooks for links and images are not affected. This vulnerability is fixed in 0.159.2.","publishedAt":"2026-04-06T17:37:05.643Z","updatedAt":"2026-04-06T18:02:37.432Z","severity":{"score":5.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["gohugoio hugo"],"affected":[{"vendor":"gohugoio","product":"hugo","versions":[{"version":">= 0.60.0, < 0.159.2","status":"affected"}]}],"references":["https://github.com/gohugoio/hugo/security/advisories/GHSA-mcv8-8m8x-48pg"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/35xxx/CVE-2026-35166.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-35166","state":"PUBLISHED","datePublished":"2026-04-06T17:37:05.643Z","dateUpdated":"2026-04-06T18:02:37.432Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-01T17:26:21.133Z"},"containers":{"cna":{"title":"Hugo does not properly escape some Markdown links","descriptions":[{"lang":"en","value":"Hugo is a static site generator. From 0.60.0 to before 0.159.2, links and image links in the default markdown to HTML renderer are not properly escaped. Hugo users who trust their Markdown content or have custom render hooks for links and images are not affected. This vulnerability is fixed in 0.159.2."}],"affected":[{"vendor":"gohugoio","product":"hugo","versions":[{"version":">= 0.60.0, < 0.159.2","status":"affected"}]}],"references":[{"url":"https://github.com/gohugoio/hugo/security/advisories/GHSA-mcv8-8m8x-48pg","name":"https://github.com/gohugoio/hugo/security/advisories/GHSA-mcv8-8m8x-48pg","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-06T17:37:05.643Z"},"source":{"advisory":"GHSA-mcv8-8m8x-48pg","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-06T18:02:26.136376Z","id":"CVE-2026-35166","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-06T18:02:37.432Z"}}]}}}