{"id":"EUVD-2026-30299","revision":"4f9b58486df044e4ad6abad14381bee1","records":[{"revision":"4f9b58486df044e4ad6abad14381bee1","observedAt":"2026-10-28T06:07:26.98+00:00","statement":{"source":"euvd","id":"EUVD-2026-30299","aliases":["CVE-2026-44375","GHSA-2cwq-pwfr-wcw3"],"title":"Nerdbank.MessagePack is a NativeAOT-compatible MessagePack serialization library. Prior to 1.1.62, Nerdbank.MessagePack contains an uncontrolled stack allocation vulnerability in DateTime decoding. A malicious MessagePack payload can declar…","description":"Nerdbank.MessagePack is a NativeAOT-compatible MessagePack serialization library. Prior to 1.1.62, Nerdbank.MessagePack contains an uncontrolled stack allocation vulnerability in DateTime decoding. A malicious MessagePack payload can declare an oversized timestamp extension length, causing the reader to allocate an attacker-controlled number of bytes on the stack. This can trigger a StackOverflowException, which is not catchable by user code and terminates the process. This vulnerability is fixed in 1.1.62.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":null}],"references":["https://github.com/AArnott/Nerdbank.MessagePack/security/advisories/GHSA-2cwq-pwfr-wcw3","https://github.com/AArnott/Nerdbank.MessagePack/pull/941","https://github.com/AArnott/Nerdbank.MessagePack/commit/7d1eb319cfabe7280e70699946c9a48579fa2f30","https://github.com/AArnott/Nerdbank.MessagePack/releases/tag/v1.1.62"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-30299","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"May 14, 2026, 2:32:09 PM","dateUpdated":"May 14, 2026, 4:02:12 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-2026-30299","identifiers":["EUVD-2026-30299","CVE-2026-44375","GHSA-2cwq-pwfr-wcw3"]},"retained":false,"historicalAffected":[]}],"coverage":[]}