CVE-2026-120808
CRITICAL
INFO
Priority: 0.02
BB Relevance:
68/100
Published: 2026-11-10
Modified: 2026-11-10
First seen: 2026-11-10
Status: active
Attack Surface
Network
No Auth
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Network
AC:
High
PR:
None
UI:
None
S:
X
AT:
Present
VC:
High
VI:
High
VA:
None
Description
An issue exists in MongoDB's macOS TLS client implementation where certificate chain-of-trust validation is bypassed for outbound connections to IPv6-addressed peers. When a MongoDB process using the Apple SecureTransport TLS backend connects to an IPv6 target, the trust evaluation result from SecTrustEvaluate is silently discarded, regardless of whether the peer's certificate is trusted. An on-path party could exploit this by presenting a self-signed certificate containing the target's IPv6 address in the Subject Alternative Name to intercept and modify encrypted inter-node or external service traffic. This issue only affects MongoDB processes running on macOS with the Apple SecureTransport TLS provider.
Weakness Classification (1)
Affected Software (4)
| Vendor | Product | Version |
|---|---|---|
| MongoDB | MongoDB Server | 9.0.0 < 9.0.7 |
| MongoDB | MongoDB Server | 8.3.0 < 8.3.16 |
| MongoDB | MongoDB Server | 8.0.0 < 8.0.37 |
| MongoDB | MongoDB Server | 7.0.0 < 7.0.48 |