{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-27837","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-02-24T02:32:39.801Z","datePublished":"2026-02-26T00:19:24.289Z","dateUpdated":"2026-02-26T14:40:07.451Z"},"containers":{"cna":{"title":"Dottie vulnerable to prototype pollution bypass via non-first path segments in set() and transform()","problemTypes":[{"descriptions":[{"cweId":"CWE-1321","lang":"en","description":"CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":6.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L","version":"3.1"}}],"references":[{"name":"https://github.com/mickhansen/dottie.js/security/advisories/GHSA-r5mx-6wc6-7h9w","tags":["x_refsource_CONFIRM"],"url":"https://github.com/mickhansen/dottie.js/security/advisories/GHSA-r5mx-6wc6-7h9w"},{"name":"https://github.com/mickhansen/dottie.js/commit/7e8fa1345a4b46325f0eab8d7aeb1c4deaefdb14","tags":["x_refsource_MISC"],"url":"https://github.com/mickhansen/dottie.js/commit/7e8fa1345a4b46325f0eab8d7aeb1c4deaefdb14"},{"name":"https://github.com/advisories/GHSA-4gxf-g5gf-22h4","tags":["x_refsource_MISC"],"url":"https://github.com/advisories/GHSA-4gxf-g5gf-22h4"}],"affected":[{"vendor":"mickhansen","product":"dottie.js","versions":[{"version":">= 2.0.4, < 2.0.7","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-02-26T00:19:24.289Z"},"descriptions":[{"lang":"en","value":"Dottie provides nested object access and manipulation in JavaScript. Versions 2.0.4 through 2.0.6 contain an incomplete fix for CVE-2023-26132. The prototype pollution guard introduced in commit `7d3aee1` only validates the first segment of a dot-separated path, allowing an attacker to bypass the protection by placing `__proto__` at any position other than the first. Both `dottie.set()` and `dottie.transform()` are affected. Version 2.0.7 contains an updated fix to address the residual vulnerability."}],"source":{"advisory":"GHSA-r5mx-6wc6-7h9w","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/mickhansen/dottie.js/security/advisories/GHSA-r5mx-6wc6-7h9w","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-26T14:40:01.145738Z","id":"CVE-2026-27837","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-02-26T14:40:07.451Z"}}]}}