CVE-2026-97205 NGINX Plus & Open Source - Use After Free

NGINX Plus and NGINX Open Source contain a use-after-free vulnerability in ngx_http_core_module when asynchronous file I/O is enabled and processing SSI pages with "include virtual" commands, letting remote attackers cause denial-of-service, memory corruption, or code execution, exploit requires ASLR disabled or bypass.

CVSS base score 8.1 /10
High
CISA KEV
Not listed
Public exploit
Proof of concept available
Authentication
Not required
View the NVD record ↗

Details

Type
Use After Free
Impact
Denial Of Service, Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
14 October 2026
Updated
15 October 2026
Weakness
CWE-416

Vendor fix

Update to the latest supported version of NGINX Plus or NGINX Open Source.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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