October 19, 2026

CVE Watchtower

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CVE-2026-11933NVD

Vulnerability Summary

A use-after-free vulnerability exists in MongoDB Server's server-side JavaScript engine when converting BSON documents to JavaScript arrays. An authenticated user with read privileges who is able to run server-side JavaScript (for example, via $where or $function) can cause the server to access memory that has already been freed. This may result in disclosure of information from the mongod process memory or a denial of service through a server crash.
Severity Level
HIGH(8.8)
Published Date
Jun 12, 2026
Last Modified
Jun 13, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.38%Probability
Root Weakness (CWE)
CWE-787: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v4.0 Base Metrics — Score 8.7 (HIGH)
Attack VectorNetwork
Attack ComplexityLow
Attack RequirementsNone
Privileges RequiredLow
User InteractionNone
Confidentiality (Vulnerable System)High
Integrity (Vulnerable System)High
Availability (Vulnerable System)High
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)None
CVSS v3.1 Base Metrics — Score 8.8 (HIGH)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • MongoDB MongoDB >= 8.3.0 and <= 8.3.3
  • MongoDB MongoDB >= 8.2.0 and <= 8.2.10
  • MongoDB MongoDB >= 8.0.0 and <= 8.0.25
  • MongoDB MongoDB >= 7.0.0 and <= 7.0.36
  • MongoDB MongoDB >= 6.0 and <= 6.0.28
  • MongoDB MongoDB >= 5.0 and <= 5.0.33
  • MongoDB MongoDB >= 4.4.0 and <= 4.4.30
Patched Versions
  • MongoDB MongoDB 8.3.3
  • MongoDB MongoDB 8.2.10
  • MongoDB MongoDB 8.0.25
  • MongoDB MongoDB 7.0.36
  • MongoDB MongoDB 6.0.28
  • MongoDB MongoDB 5.0.33
  • MongoDB MongoDB 4.4.30
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🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
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External References