{"id":"CVE-2026-102639","title":"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 cra…","summary":"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 cra…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-195"],"vendor":"MobilityDB","product":"MobilityDB","affected":["MobilityDB >= 1.1.0 <= 1.1.2","MobilityDB >= 1.2.0 < 1.2.2","MobilityDB >= 1.3.0 < 1.3.1"],"published":"2026-09-29","updated":"2026-09-29","sourceUpdated":"2026-09-29T18:17:09.173","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-102639","references":[{"url":"https://github.com/MobilityDB/MobilityDB/releases/tag/v1.2.2","label":"disclosure@vulncheck.com"},{"url":"https://github.com/MobilityDB/MobilityDB/releases/tag/v1.3.1","label":"disclosure@vulncheck.com"},{"url":"https://github.com/MobilityDB/MobilityDB/security/advisories/GHSA-2c92-2w7c-pm3g","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/mobilitydb-through-out-of-bounds-read-dos-via-wkb-deserialization","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-29T18:42:35.812Z","slug":"CVE-2026-102639","body":"## Overview\n\nMobilityDB 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}