{"id":"CVE-2026-49206","published":"2026-10-14T16:17:45.667","lastModified":"2026-10-16T20:04:29.760","description":"rapidcsv is a C++ CSV parser library. Prior to 8.99, RemoveColumn, InsertColumn, RemoveRow, InsertRow, and GetColumnNames converted size_t indexes to int before adding them to std::vector iterators. On 64-bit systems, in a CSV matrix dimension containing more than 2^31 elements, an index above INT_MAX could wrap to a negative iterator offset and point before the start of the vector, causing undefined behavior, heap memory corruption, or a crash. Triggering the issue requires an extremely large in-memory document, requiring tens of gigabytes of memory at minimum, so typical CSV documents are not practically affected. This issue is fixed in version 8.99.","cvssScore":2.9,"cvssSeverity":"LOW","cvssVector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","cwes":["CWE-190","CWE-787"],"vendors":[],"products":[],"references":[{"url":"https://github.com/d99kris/rapidcsv/commit/68f57cc6c83d5e0992904398822453489d8dfac1","tags":[]},{"url":"https://github.com/d99kris/rapidcsv/issues/220","tags":[]},{"url":"https://github.com/d99kris/rapidcsv/releases/tag/v8.99","tags":[]},{"url":"https://github.com/d99kris/rapidcsv/security/advisories/GHSA-v83v-8j5q-6553","tags":[]}],"exploitRefs":[{"url":"https://github.com/d99kris/rapidcsv/commit/68f57cc6c83d5e0992904398822453489d8dfac1","tags":[]},{"url":"https://github.com/d99kris/rapidcsv/issues/220","tags":[]},{"url":"https://github.com/d99kris/rapidcsv/releases/tag/v8.99","tags":[]},{"url":"https://github.com/d99kris/rapidcsv/security/advisories/GHSA-v83v-8j5q-6553","tags":[]}],"hasPoc":true,"ai":null}