Cyber Resilience

CVE-2026-6914

Memory Safety in Mongodb 7.0.0 – 7.0.32

Memory Safety
Published
29 April 2026
Modified
06 May 2026
Patch / advisory
View advisory
CVSS Score v4 7.1
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/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
EPSS Score 0.0026 17th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-6914 is a high-severity Wrap or Wraparound (CWE-191) vulnerability in Mongodb Mongodb. Its CVSS base score is 7.1 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 17th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SI-2 (Flaw Remediation) and SC-5 (Denial-of-service Protection) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

Computing the MD5 checksum of a malformed BSON object under specific conditions may cause loss of availability in MongoDB server. This issue affects all MongoDB Server v8.2 versions, all MongoDB Server v8.1 versions, MongoDB Server v8.0 versions prior to 8.0.21,…

more

MongoDB Server v7.0 versions prior to 7.0.32

CWE(s)
CWE-191

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
attack.mitre.org →
Why these techniques?

Malformed BSON input triggers integer underflow leading to server DoS via application exploitation.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

Likely ATT&CK TechniquesAI

Techniques this vulnerability likely enables, inferred from its description, weakness type, and attributed-actor tradecraft. Confidence is per-technique.

T1499.004 Application or System Exploitation Impactconfidence: HIGH
Malformed BSON input triggers integer underflow leading to server crash, enabling application-layer DoS via exploitation.
attack.mitre.org →
inferred from description + CWE · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2026-8199Same product: Mongodb Mongodb
CVE-2025-6706Same product: Mongodb Mongodb
CVE-2026-9746Same product: Mongodb Mongodb
CVE-2025-7259Same product: Mongodb Mongodb
CVE-2026-25613Same product: Mongodb Mongodb
CVE-2026-9747Same product: Mongodb Mongodb
CVE-2026-9752Same product: Mongodb Mongodb
CVE-2026-5170Same product: Mongodb Mongodb
CVE-2026-9740Same product: Mongodb Mongodb
CVE-2026-1850Same product: Mongodb Mongodb

Affected Assets

mongodb
mongodb
7.0.0 — 7.0.32 · 8.0.0 — 8.0.21 · 8.1.0 — 8.2.7

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • SI-2 Flaw Remediation
  • SI-10 Information Input Validation
  • SC-5 Denial-of-service Protection
Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)

—

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Directly requires applying vendor patches that correct the integer underflow when MD5 is computed on malformed BSON, eliminating the availability impact for all listed MongoDB versions.

SI-10 Information Input Validation partial match
prevent

Mandates validation of BSON input structure and length fields before checksum processing, blocking the malformed objects that trigger the underflow.

SC-5 Denial-of-service Protection partial match
prevent

Requires denial-of-service protection mechanisms that can throttle or isolate requests causing resource exhaustion from the BSON/MD5 flaw.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 full match
prevents

Secure SDLC practices directly prevent integer underflow defects via input validation, bounds checking, and static analysis.

ID.RA-01 partial match
prevents

Vulnerability scanning and code analysis can surface underflow flaws after they are introduced.

PR.PS-02 partial match
prevents

Routine patching can remediate known underflow bugs once they are discovered in deployed software.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
detects

Security testing in development catches integer underflow defects before release.

A.8.25 Secure development life cycle partial match
prevents

Secure development lifecycle mandates input validation and arithmetic checks that prevent integer underflow.

A.8.26 Application security requirements partial match
prevents

Application security requirements include bounds checking and safe arithmetic to avoid underflow conditions.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles require defensive coding patterns that mitigate integer wraparound risks.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly prescribe safe integer handling and overflow/underflow prevention.

References