CVE-2026-13070

Analyzed Analyzed - Analysis Complete

MongoDB Server Abnormal Termination via Malformed OCSP Response

Publication date: 2026-07-22

Last updated on: 2026-08-05

Assigner: MongoDB, Inc.

Description

A MongoDB server initiating an outbound TLS connection may terminate abnormally when processing a malformed OCSP response from a remote peer during the TLS handshake. OCSP stapling validation is enabled by default for outgoing TLS connections. Affected scenarios require the remote peer to hold a certificate issued by the cluster's trusted certificate authority, or for the connection to traverse an untrusted network path.

CVSS Scores

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Meta Information

Published

2026-07-22

Last Modified

2026-08-05

Generated

2026-08-12

AI Q&A

2026-07-22

EPSS Evaluated

2026-08-10

NVD

CVE-2026-13070

EUVD

EUVD-2026-47791

Affected Vendors & Products

Vendor	Product	Version / Range
mongodb	mongodb	From 7.0.0 (inc) to 7.0.39 (exc)
mongodb	mongodb	From 8.0.0 (inc) to 8.0.28 (exc)
mongodb	mongodb	From 8.2.0 (inc) to 8.2.12 (exc)
mongodb	mongodb	From 8.3.0 (inc) to 8.3.7 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-476	The product dereferences a pointer that it expects to be valid but is NULL.

Attack-Flow Graph

Executive Summary

This vulnerability involves a MongoDB server crashing when it receives a malformed OCSP response during a TLS handshake. OCSP stapling validation is enabled by default for outgoing TLS connections. The issue occurs if the remote peer's certificate is issued by the cluster's trusted CA or if the connection passes through an untrusted network.

Detection Guidance

This vulnerability involves abnormal termination of MongoDB servers during TLS handshake due to malformed OCSP responses. Detection requires monitoring MongoDB server logs for TLS handshake failures or abnormal terminations, particularly when OCSP stapling validation is involved.

Impact Analysis

The server may terminate abnormally, causing disruptions in service. This could lead to downtime, data unavailability, or failed connections to dependent services relying on MongoDB.

Compliance Impact

Service disruptions could impact data availability and integrity, potentially violating compliance requirements for GDPR (data protection) and HIPAA (health data security). Unplanned outages may lead to non-compliance penalties.

Mitigation Strategies

Disable OCSP stapling validation for outgoing TLS connections in MongoDB. Update MongoDB to the latest patched version if available. Ensure all certificates are valid and properly configured to avoid malformed OCSP responses.

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