CVE-2026-102639
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
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 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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| MobilityDB | MobilityDB | 1.1.0 <= 1.1.2 | affected |
| MobilityDB | MobilityDB | 1.2.0 < 1.2.2 | affected |
| MobilityDB | MobilityDB | 1.3.0 < 1.3.1 | affected |
Weaknesses
- CWE-195: Signed to Unsigned Conversion Error
References
- https://github.com/MobilityDB/MobilityDB/security/advisories/GHSA-2c92-2w7c-pm3g
- https://github.com/MobilityDB/MobilityDB/releases/tag/v1.3.1
- https://github.com/MobilityDB/MobilityDB/releases/tag/v1.2.2
- https://www.vulncheck.com/advisories/mobilitydb-through-out-of-bounds-read-dos-via-wkb-deserialization
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