EUVD-2026-12587CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
4Description
A use-after-free vulnerability can be triggered in sharded clusters by an authenticated user with the read role who issues a specially crafted $lookup or $graphLookup aggregation pipeline.
Analysis
MongoDB Server sharded clusters are vulnerable to use-after-free memory corruption when authenticated users with read permissions execute malicious $lookup or $graphLookup aggregation pipeline operations. An attacker can exploit this vulnerability to achieve high-impact outcomes including information disclosure, data manipulation, and denial of service. …
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Remediation
Within 24 hours: Identify all MongoDB Server instances running versions 7.0 (before 7.0.31), 8.0 (before 8.0.20), or 8.2 (before 8.2.6) and document their criticality; restrict database user privileges to eliminate unnecessary read access. Within 7 days: Implement network segmentation to limit database access to trusted application servers only; disable $lookup and $graphLookup aggregation pipeline operations if not required for business operations. …
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Priority Score
Vendor Status
Debian
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| (unstable) | fixed | (unfixed) | - |
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External POC / Exploit Code
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