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| Link | Providers |
|---|---|
| https://jira.mongodb.org/browse/CDRIVER-6315 |
|
Thu, 17 Sep 2026 20:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw in libmongoc's SCRAM authentication implementation caused the client to continue the authentication handshake and transmit the client proof even when a nonce mismatch was detected in the server's first message. An unauthorized party with a man-in-the-middle position could exploit this by injecting a crafted server-first-message containing a controlled salt and low iteration count, then capturing the resulting client proof to perform offline password cracking. This vulnerability is mitigated by TLS, which is standard in production deployments. | |
| Title | libmongoc SCRAM client nonce-validation bypass | |
| Weaknesses | CWE-303 | |
| References |
| |
| Metrics |
cvssV3_1
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Subscriptions
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Status: PUBLISHED
Assigner: mongodb
Published:
Updated: 2026-09-17T20:31:27.875Z
Reserved: 2026-09-17T20:11:00.595Z
Link: CVE-2026-93394
No data.
Status : Received
Published: 2026-09-17T21:17:56.307
Modified: 2026-09-17T21:17:56.307
Link: CVE-2026-93394
No data.
OpenCVE Enrichment
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