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CVE-2026-102639— MobilityDB through 1.3.0 Out-of-bounds Read DoS via WKB Deserialization

Quick assessment

Affected
MobilityDB MobilityDB
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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

CVSS 6.5 · Medium

Affected Version Matrix 3

VendorProduct Version RangeStatus
MobilityDB MobilityDB 1.1.0≤ 1.1.2 affected
1.2.0< 1.2.2 affected
1.3.0< 1.3.1 affected
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I. Basic Information for CVE-2026-102639

Vulnerability Information

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Vulnerability Title
MobilityDB through 1.3.0 Out-of-bounds Read DoS via WKB Deserialization
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
有符号至无符号转换错误
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
MobilityDB MobilityDB 1.1.0 ~ 1.1.2 -

II. Public POCs for CVE-2026-102639

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III. Intelligence Information for CVE-2026-102639

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Other References for CVE-2026-102639 (4)

IV. Related Vulnerabilities

Same weakness: CWE-195

V. Comments for CVE-2026-102639

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