{"id":"CVE-2026-39412","state":"PUBLISHED","title":"LiquidJS has an ownPropertyOnly bypass via sort_natural filter — prototype property information disclosure through sorting side-channel","description":"LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to 10.25.4, the sort_natural filter bypasses the ownPropertyOnly security option, allowing template authors to extract values of prototype-inherited properties through a sorting side-channel attack. Applications relying on ownPropertyOnly: true as a security boundary (e.g., multi-tenant template systems) are exposed to information disclosure of sensitive prototype properties such as API keys and tokens. This vulnerability is fixed in 10.25.4.","publishedAt":"2026-04-08T19:39:17.780Z","updatedAt":"2026-04-09T13:53:27.859Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["harttle liquidjs"],"affected":[{"vendor":"harttle","product":"liquidjs","versions":[{"version":"< 10.25.4","status":"affected"}]}],"references":["https://github.com/harttle/liquidjs/security/advisories/GHSA-rv5g-f82m-qrvv","https://github.com/harttle/liquidjs/pull/869","https://github.com/harttle/liquidjs/commit/e743da0020d34e2ee547e1cc1a86b58377ebe1ce","https://github.com/harttle/liquidjs/releases/tag/v10.25.4"],"weaknesses":["CWE-200"],"ingestedAt":"2026-10-29T20:11:50.837Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/39xxx/CVE-2026-39412.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-39412","state":"PUBLISHED","datePublished":"2026-04-08T19:39:17.780Z","dateUpdated":"2026-04-09T13:53:27.859Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-07T00:23:30.595Z"},"containers":{"cna":{"title":"LiquidJS has an ownPropertyOnly bypass via sort_natural filter — prototype property information disclosure through sorting side-channel","descriptions":[{"lang":"en","value":"LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to 10.25.4, the sort_natural filter bypasses the ownPropertyOnly security option, allowing template authors to extract values of prototype-inherited properties through a sorting side-channel attack. Applications relying on ownPropertyOnly: true as a security boundary (e.g., multi-tenant template systems) are exposed to information disclosure of sensitive prototype properties such as API keys and tokens. This vulnerability is fixed in 10.25.4."}],"affected":[{"vendor":"harttle","product":"liquidjs","versions":[{"version":"< 10.25.4","status":"affected"}]}],"references":[{"url":"https://github.com/harttle/liquidjs/security/advisories/GHSA-rv5g-f82m-qrvv","name":"https://github.com/harttle/liquidjs/security/advisories/GHSA-rv5g-f82m-qrvv","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/harttle/liquidjs/pull/869","name":"https://github.com/harttle/liquidjs/pull/869","tags":["x_refsource_MISC"]},{"url":"https://github.com/harttle/liquidjs/commit/e743da0020d34e2ee547e1cc1a86b58377ebe1ce","name":"https://github.com/harttle/liquidjs/commit/e743da0020d34e2ee547e1cc1a86b58377ebe1ce","tags":["x_refsource_MISC"]},{"url":"https://github.com/harttle/liquidjs/releases/tag/v10.25.4","name":"https://github.com/harttle/liquidjs/releases/tag/v10.25.4","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-200","lang":"en","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-08T19:39:17.780Z"},"source":{"advisory":"GHSA-rv5g-f82m-qrvv","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/harttle/liquidjs/security/advisories/GHSA-rv5g-f82m-qrvv","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-09T13:53:22.871378Z","id":"CVE-2026-39412","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-09T13:53:27.859Z"}}]}}}