{"id":"CVE-2026-102639","aliases":["EUVD-2026-89198","GHSA-2c92-2w7c-pm3g"],"status":"published","title":"MobilityDB through 1.3.0 Out-of-bounds Read DoS via WKB Deserialization","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.","severity":{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00324,"percentile":0.25857,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-195"],"published":"2026-09-29T17:57:36Z","modified":"2026-11-08T14:00:43Z","products":[{"vendor":"mobilitydb","product":"mobilitydb"}],"references":[{"url":"https://github.com/MobilityDB/MobilityDB/security/advisories/GHSA-2c92-2w7c-pm3g","tags":["vendor-advisory","technical-description","advisory"]},{"url":"https://github.com/MobilityDB/MobilityDB/releases/tag/v1.3.1","tags":["patch","release-notes","fix"]},{"url":"https://github.com/MobilityDB/MobilityDB/releases/tag/v1.2.2","tags":["patch","release-notes","fix"]},{"url":"https://www.vulncheck.com/advisories/mobilitydb-through-out-of-bounds-read-dos-via-wkb-deserialization","tags":["third-party-advisory","advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102639.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102639","tags":["advisory"]},{"url":"https://github.com/MobilityDB/MobilityDB","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-102639","title":"MobilityDB through 1.3.0 Out-of-bounds Read DoS via WKB Deserialization","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.","status":"published","published":"2026-09-29T17:57:36.883Z","modified":"2026-11-08T14:00:43.896Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-195"],"updated_at":"2026-11-08T14:43:22.764053Z"}],"euvd":[{"id":"EUVD-2026-89198","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.","status":"published","published":"2026-09-29T17:57:36Z","modified":"2026-11-08T14:00:43Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-08T15:13:09.785497Z"}],"nvd":[{"id":"CVE-2026-102639","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.","status":"published","published":"2026-09-29T18:17:09.173Z","modified":"2026-10-02T13:17:18.593Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"}],"cwes":["CWE-195"],"updated_at":"2026-11-02T14:12:52.413234Z"}],"osv":[{"id":"CVE-2026-102639","title":"MobilityDB through 1.3.0 Out-of-bounds Read DoS via WKB Deserialization","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.","status":"published","published":"2026-09-29T17:57:36.883Z","modified":"2026-11-09T02:30:39.640997227Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-195"],"updated_at":"2026-11-09T03:16:44.651171Z"}]}}