CVE-2026-82065: CWE-617: Reachable Assertion in MongoDB MongoDB Server
A security issue in the MongoDB Server's storage engine integration layer allows an authenticated user with collection creation privileges to cause a persistent denial of service. Insufficient validation of user-supplied storage configuration options permits values that, once persisted to durable metadata, trigger a fatal assertion failure when the metadata is subsequently read by diagnostic operations. The corrupted metadata persists across server restarts and is replicated to other cluster members, requiring manual operator intervention to restore service.
AI Analysis
Technical Summary
This vulnerability in MongoDB Server's storage engine integration layer (CWE-617: Reachable Assertion) allows an authenticated user with collection creation privileges to supply storage configuration options that are not properly validated. When these invalid options are persisted to durable metadata, subsequent diagnostic operations reading this metadata cause a fatal assertion failure. The corrupted metadata remains persistent across server restarts and replicates to other cluster members, resulting in a persistent denial of service that necessitates manual operator intervention to recover.
Potential Impact
An attacker with collection creation privileges can cause a persistent denial of service by corrupting durable metadata, which leads to fatal assertion failures during diagnostic operations. This corruption persists through server restarts and replicates across cluster members, potentially disrupting the availability of the MongoDB cluster until manual recovery actions are performed.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict collection creation privileges to trusted users only and monitor for unusual storage configuration changes. Manual intervention is required to restore service if the issue is triggered.
CVE-2026-82065: CWE-617: Reachable Assertion in MongoDB MongoDB Server
Description
A security issue in the MongoDB Server's storage engine integration layer allows an authenticated user with collection creation privileges to cause a persistent denial of service. Insufficient validation of user-supplied storage configuration options permits values that, once persisted to durable metadata, trigger a fatal assertion failure when the metadata is subsequently read by diagnostic operations. The corrupted metadata persists across server restarts and is replicated to other cluster members, requiring manual operator intervention to restore service.
CVSS v4.0
Score 7.1high
Affected software
pkg:github/mongodb/mongoRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in MongoDB Server's storage engine integration layer (CWE-617: Reachable Assertion) allows an authenticated user with collection creation privileges to supply storage configuration options that are not properly validated. When these invalid options are persisted to durable metadata, subsequent diagnostic operations reading this metadata cause a fatal assertion failure. The corrupted metadata remains persistent across server restarts and replicates to other cluster members, resulting in a persistent denial of service that necessitates manual operator intervention to recover.
Potential Impact
An attacker with collection creation privileges can cause a persistent denial of service by corrupting durable metadata, which leads to fatal assertion failures during diagnostic operations. This corruption persists through server restarts and replicates across cluster members, potentially disrupting the availability of the MongoDB cluster until manual recovery actions are performed.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict collection creation privileges to trusted users only and monitor for unusual storage configuration changes. Manual intervention is required to restore service if the issue is triggered.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mongodb
- Date Reserved
- 2026-08-27T22:52:38.664Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6aa03a28acd9273b49ec365a
Added to database: 09/08/2026, 16:39:04 UTC
Last enriched: 09/08/2026, 16:52:53 UTC
Last updated: 09/09/2026, 00:23:08 UTC
Views: 8
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.