CVE-2019-11495
Last modified
CVE-2019-11495 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 2.14% chance of exploitation in the next 30 days.
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/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Couchbase | Couchbase Server | 5.1.1 |
References
- https://www.couchbase.com/resources/security#SecurityAlertsBroken Link, Vendor Advisory
- https://www.couchbase.com/resources/security#SecurityAlertsBroken Link, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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