{"id":"CVE-2026-102639","published":"2026-09-29T18:17:09.173","lastModified":"2026-09-29T18:17:09.173","description":"MobilityDB version 1.3.0 and earlier contains an out-of-bounds read vulnerability in the MEOS binary and library WKB deserialization logic that allows unprivileged database users to crash the PostgreSQL backend process by supplying a crafted WKB payload with a negative length field. The negative length value wraps to a large unsigned size_t due to missing signed validation, bypasses an overflow-unsafe pointer arithmetic bounds check in wkb_parse_state_check(), and causes memcpy() in text_from_wkb_state() to operate with a corrupted unbounded length, resulting in a remote denial-of-service condition affecting all sessions on the PostgreSQL instance.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-195"],"vendors":[],"products":[],"references":[{"url":"https://github.com/MobilityDB/MobilityDB/releases/tag/v1.2.2","tags":[]},{"url":"https://github.com/MobilityDB/MobilityDB/releases/tag/v1.3.1","tags":[]},{"url":"https://github.com/MobilityDB/MobilityDB/security/advisories/GHSA-2c92-2w7c-pm3g","tags":[]},{"url":"https://www.vulncheck.com/advisories/mobilitydb-through-out-of-bounds-read-dos-via-wkb-deserialization","tags":[]}],"exploitRefs":[{"url":"https://github.com/MobilityDB/MobilityDB/releases/tag/v1.2.2","tags":[]},{"url":"https://github.com/MobilityDB/MobilityDB/releases/tag/v1.3.1","tags":[]},{"url":"https://github.com/MobilityDB/MobilityDB/security/advisories/GHSA-2c92-2w7c-pm3g","tags":[]}],"hasPoc":true,"ai":null}