CVE-2026-78222

A vulnerability exists in NGINX JavaScript where a malformed HTTP response received by ngx.fetch() can crash an NGINX worker when trusted JavaScript reads Response.statusText. Exploitation requires control or influence over the fetched HTTP response. Impact: This vulnerability may allow remote attackers to cause a denial-of-service (DoS) on the NGINX system. There is no control plane exposure; this is a data plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://my.f5.com/manage/s/article/K000162603

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-02 16:17

Updated : 2026-09-02 19:23

NVD link : CVE-2026-78222

Mitre link : CVE-2026-78222

CVE.ORG link : CVE-2026-78222

JSON object : View

Products Affected

No product.

CWE

CWE-476

NULL Pointer Dereference

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