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.
History

Fri, 02 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 30 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Mobilitydb
Mobilitydb mobilitydb
Vendors & Products Mobilitydb
Mobilitydb mobilitydb

Tue, 29 Sep 2026 18:15:00 +0000

Type Values Removed Values Added
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.
Title MobilityDB through 1.3.0 Out-of-bounds Read DoS via WKB Deserialization
Weaknesses CWE-195
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-09-29T17:57:36.883Z

Updated: 2026-11-08T14:00:43.896Z

Reserved: 2026-09-29T15:52:45.482Z

Link: CVE-2026-102639

cve-icon Vulnrichment

Updated: 2026-10-02T12:19:07.039Z

cve-icon NVD

Status : Deferred

Published: 2026-09-29T18:17:09.173

Modified: 2026-10-02T13:17:18.593

Link: CVE-2026-102639

cve-icon Redhat

No data.