CVE-2019-11495

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

In Couchbase Server 5.1.1, the cookie used for intra-node communication was not generated securely. Couchbase Server uses erlang:now() to seed the PRNG which results in a small search space for potential random seeds that could then be used to brute force the cookie and execute code against a remote system. This has been fixed in version 6.0.0.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-335

Affected software

VendorProductVersions
n/an/an/a

References

Timeline

Published
Sep 10, 2019
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2019-11495: Critical severity, CVSS 9.8 | Vulnix