Microsoft · containerd CRI ExecSync Goroutine Leak Leading to Node-Level Denial of Service
Affects MicrosoftSource GCVE Database
Not known to be exploited.
Data as of 2 Nov 2026, 09:58 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
CVE published 16 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 1 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Security Response Center Microsoft | Affected
| Fixed in– |
AI-suggested
Users should monitor vendor advisories for updates. Until a fix is released, consider limiting exposure of affected nodes and controlling ExecSync usage if possible.
Description
A vulnerability in containerd CRI version 3.0 causes a Goroutine leak during ExecSync operations, which can lead to node-level denial of service.