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VulnerabilityPublished

CVE-2026-33186: Yunikorn k8shim · gRPC-Go is the Go language implementation of gRPC

Affects yunikorn-k8shimSource GCVE Database

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Authoritative record:CVE-2026-33186· Critical 9.1

Not known to be exploited · CVSS 9.1 Critical : upgrade to 1.8.0-r4 as a priority.

Data as of 14 Nov 2026, 03:51 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 1.8.0-r4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Upgrade yunikorn-k8shim to 1.8.0-r4.

Affected software

ProductAffectedFixed in
CleanStartyunikorn-k8shimpkg:apk/cleanstart/yunikorn-k8shimOther threatsAffected
  • <1.8.0-r4
Fixed in
  • 1.8.0-r4

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade yunikorn-k8shim to version 1.8.0-r4 or later to remediate this vulnerability. Since a patch is available and the fixed version is explicitly identified, applying this update is the recommended mitigation.

Description

A critical security vulnerability (CVE-2026-33186) affects the yunikorn-k8shim package, specifically related to the gRPC-Go implementation. Versions prior to 1.8.0-r4 are vulnerable. The flaw has a high impact on confidentiality and integrity but does not affect availability. A patch is available in version 1.8.0-r4.

References

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