What’s Vulnerable › Vulnerabilities

CVE-2026-112048: libspatialite through 5.1.0 Uncontrolled Memory Allocation via ParseWkbPolygon Ring Count

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-18 · updated 2026-10-20
• Weakness: CWE-789

Description

libspatialite through 5.1.0 fails to validate the polygon ring count in ParseWkbPolygon, allowing attackers to trigger uncontrolled interior-ring allocation via crafted geometry BLOBs. Attackers can supply a crafted polygon in a SpatiaLite database or ST_GeomFromWKB input to crash the process or corrupt heap memory on 32-bit builds.

Affected products

• SpatiaLite libspatialite: through 5.1.0

References

• https://hackmd.io/@haindpwn/libspatialite-wkb-geometry-count-overflow
• https://www.gaia-gis.it/fossil/libspatialite/file?name=src/gaiageo/gg_wkb.c&ci=5a5528e8d2
• https://www.vulncheck.com/advisories/libspatialite-through-5.1.0-uncontrolled-memory-allocation-via-parsewkbpolygon-ring-count
• https://hackmd.io/@haindpwn/libspatialite-wkb-geometry-count-overflow

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