{"id":"EUVD-2026-63468","revision":"ca62052e2f894f6e8143927ea233bc12","records":[{"revision":"ca62052e2f894f6e8143927ea233bc12","observedAt":"2026-11-01T06:16:36.089+00:00","statement":{"source":"euvd","id":"EUVD-2026-63468","aliases":["CVE-2026-40345","GHSA-ggr8-5vv4-36mx"],"title":"deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects. Prior to 8.0.0, the deepmerge, deepmergeCustom, deepmergeInto, and deepmergeIntoCustom APIs do not track visited objects or object pairs whe…","description":"deepmerge-ts is a typescript library providing functionality to deep merging of javascript objects. Prior to 8.0.0, the deepmerge, deepmergeCustom, deepmergeInto, and deepmergeIntoCustom APIs do not track visited objects or object pairs when recursively merging records. When two input values contain self-references at the same property path, the merge logic repeatedly revisits the same pair until Node.js raises RangeError: Maximum call stack size exceeded. Applications that merge attacker-controlled recursive object graphs can synchronously crash the affected process or cause repeated worker restarts. Plain JSON input alone cannot create the recursive graph required to trigger the issue. This issue is fixed in version 8.0.0.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.2,"severity":null}],"references":["https://github.com/RebeccaStevens/deepmerge-ts/security/advisories/GHSA-ggr8-5vv4-36mx","https://github.com/RebeccaStevens/deepmerge-ts/pull/707","https://github.com/RebeccaStevens/deepmerge-ts/commit/398492757b3f22a0d7d89b09ce1ae9cd32806c9a","https://github.com/RebeccaStevens/deepmerge-ts/releases/tag/v8.0.0"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-63468","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Aug 20, 2026, 4:33:52 PM","dateUpdated":"Aug 21, 2026, 4:28:15 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-63468","identifiers":["EUVD-2026-63468","CVE-2026-40345","GHSA-ggr8-5vv4-36mx"]},"retained":false,"historicalAffected":[]}],"coverage":[]}