Vulnerability · Published Sep 29, 2026 · Assigned by VulnCheck
CVE-2026-102639MobilityDB through 1.3.0 Out-of-bounds Read DoS via WKB Deserialization
Medium 6.5
In plain English
A medium-severity security flaw in MobilityDB from MobilityDB. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| MobilityDB | MobilityDB | 1.1.0 – through 1.1.21.2.0 – before 1.2.21.3.0 – before 1.3.1 |
Weakness: CWE-195 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
- Vendor Advisory vendor-advisory, technical-description
- MobilityDB v1.3.1 Patch patch
- MobilityDB v1.2.2 Patch patch
- VulnCheck Advisory third-party-advisory