cvedb.io
CVE-2018-8023
MEDIUM · CVSS 5.9
EPSS exploitation probability: 0%
Published 2018-09-21T13:29:01.140 · Last modified 2026-06-17T02:04:06.860

Summary

Apache Mesos can be configured to require authentication to call the Executor HTTP API using JSON Web Token (JWT). In Apache Mesos versions pre-1.4.2, 1.5.0, 1.5.1, 1.6.0 the comparison of the generated HMAC value against the provided signature in the JWT implementation used is vulnerable to a timing attack because instead of a constant-time string comparison routine a standard `==` operator has been used. A malicious actor can therefore abuse the timing difference of when the JWT validation function returns to reveal the correct HMAC value.

Affected products

apache — mesos

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.