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CVE-2026-4358 (GCVE-0-2026-4358)

Vulnerability from cvelistv5 – Published: 2026-03-17 19:00 – Updated: 2026-03-17 20:08
VLAI
Title
Memory safety issues in slot-based execution hash table spill
Summary
A specially crafted aggregation query with $lookup by an authenticated user with write privileges can cause a double-free or use-after-free memory issue in the slot-based execution (SBE) engine when an in-memory hash table is spilled to disk.
Severity
6.1 (Medium)
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
6.4 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-17 20:03 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
MongoDB Inc MongoDB Server Affected: 8.2 , < 8.2.6 (custom)
Affected: 8.0 , < 8.0.20 (custom)
Affected: 7.0 , < 7.0.31 (custom)
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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