CVE-2026-92778CWE-693

CVE-2026-92778

Medium · published September 17, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
37.2
In the wild
Unconfirmed
What it is

CMAK through 3.0.0.6 fails to apply the scheduled leader election feature toggle to HTML form routes, allowing attackers to bypass the feature gate. Attackers can access the form endpoints to start and stop the recurring election scheduler, disrupting leadership across managed Kafka clusters.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
EPSS
0.00441 · 37.2th percentile
Weakness
CWE-693 · Protection Mechanism Failure
Published
2026-09-17T01:17Z
References (4)
https://github.com/yahoo/CMAK · [email protected]https://github.com/yahoo/CMAK/blob/3.0.0.6/app/controllers/PreferredReplicaElection.scala#L110-L143 · [email protected]https://github.com/yahoo/CMAK/issues/936 · [email protected]https://www.vulncheck.com/advisories/cmak-through-3.0.0.6-feature-gate-bypass-via-html-form-routes · [email protected]
EPSS history
Timeline
  • 18 SEP 04:02Z
    EPSS moved — → 0%
    epss
  • 16 SEP 20:32Z
    CMAK through 3.0.0.6 Feature Gate Bypass via HTML Form Routes
    cvelistv5