Recorded 18 Oct 2026 at 14:54 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position.
See the latest record.
The historical field “Public exploit code” recorded Nuclei detection-template membership. It did not establish exploit availability. The original recorded fields remain below.
The historical “Publicly disclosed: No” field could represent a missing MSRC assessment. It does not establish that the vulnerability was undisclosed. The original recorded fields remain below.
CVEMicrosoft Security Response Center
Root.Mkdir(All) can follow junctions out of the root on Windows in os
Root.Mkdir(All) can follow junctions out of the root on Windows in os
What it said
CVE
CVE-2026-56857
Severity
Critical
CVSS base score
9.8
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact
Not stated
Exploitation detected
Not reported by MSRC
Publicly disclosed
No
Exploitability
Not assessed
Component
Mariner
Weakness
CWE-1386: Insecure Operation on Windows Junction / Mount Point
Issued by
Go
Customer action
Required: apply the update
Affected products
azl3 golang 1.26.7-1 on Azure Linux 3.0, azl3 golang 1.27.1-1 on Azure Linux 3.0