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CVE CVE-2026-42926

CVE-2026-42926

nginx

Severity: MEDIUM
CVSS: 5.8CVSS
Published: 2026-05-13
Last modified: 2026-05-13
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
CWE: CWE-172

Description

When NGINX Open Source is configured to proxy HTTP/2 traffic by setting proxy_http_version to 2, and also uses proxy_set_body, an attacker may be able to inject frame headers and payload bytes to the upstream peer. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

References

https://my.f5.com/manage/s/article/K000161131

Summary

Description

References