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Uncontrolled memory allocation in libspatialite polygon parsing

Priority MEDIUM 64CWE-789Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · Low · High
Fix status
Deferred Red Hat: fix deferred

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-789.

Summary

libspatialite through 5.1.0 fails to validate the polygon ring count in ParseWkbPolygon, so a crafted geometry causes uncontrolled interior-ring allocation (CWE-789). An attacker who supplies a crafted polygon in a SpatiaLite database or ST_GeomFromWKB input can crash the process or corrupt heap memory on 32-bit builds.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0018 7th percentileScored 2026-11-07
Fix Deferred Red Hat: fix deferred

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SpatiaLitelibspatialiteup to 5.1.0—No fix listedCNA
  • libspatialite VendorSpatiaLite Affected up to 5.1.0 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for libspatialite. Red Hat's plan for Red Hat Enterprise Linux AI (RHEL AI) 3 is none available.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AI (RHEL AI) 3AffectedNo fix yet: Fix deferred

Timeline

  1. 2026-10-18 Threatist record created from CVE-2026-112048
  2. 2026-10-18 Alias added: GHSA-w35v-6xgp-6m6w
  3. 2026-10-18 Affected versions changed · Red Hat
  4. 2026-10-18 CVSS score added · Red Hat
  5. 2026-10-19 Priority changed: MEDIUM → LOW
  6. 2026-10-20 CISA SSVC decision points changed
  7. 2026-10-20 Priority changed: LOW → MEDIUM

References

  • TI-2026-76180 Integer overflow in libspatialite WKB geometry parsing CVSS 4.0MEDIUM 6.9

Sources