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F5 security patch release for CVE-2026-42530

Security Patch Release
First reported
Last updated
Happening score
H score 39
1 unique sources, 1 articles

Summary

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F5 released security updates for NGINX Open Source after finding two critical vulnerabilities that could lead to remote code execution on affected systems. The patch set covers CVE-2026-42530 and CVE-2026-42055, with fixed builds spanning NGINX Open Source and related NGINX products. Administrators using the affected HTTP/3, HTTP/2, proxy, WAF, and ingress components need to move to the fixed versions to remove the code-execution risk.

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LiteSpeed cPanel user-end plugin urgent security update (CVE-2026-48172)

Security Patch Release
H score42 First: 27.05.2026 13:06 Last: 27.05.2026 13:06 Sources 1

About this happening: LiteSpeed released urgent security updates for the cPanel user-end plugin after CVE-2026-48172 was found to be actively exploited, reducing exposure for systems ru...

Latest development: 16.06.2026 13:47

CISA added CVE-2026-48172/CVE-2026-54420 in the LiteSpeed cPanel user-end plugin to the Known Exploited Vulnerabilities Catalog and ordered Federal Civilian Executive Branch agencies to secure affected servers within three days under BOD 26-04. The affected plugin versions before 2.4.8 are described as actively exploited, with FTP or web shell access enabling root escalation on shared hosting servers running CloudLinux/CageFS.

Open Happening

Timeline

  1. 18.06.2026 20:32 2 articles · 27d ago

    F5 releases security updates for critical NGINX Open Source flaws

    Mitigation Patch Update

    F5 released security updates for NGINX Open Source and related NGINX products to address CVE-2026-42530 and CVE-2026-42055, two critical flaws that could let a remote unauthenticated attacker achieve code execution on affected systems. Fixed versions include NGINX Open Source 1.31.2 and 1.30.3, NGINX Gateway Fabric 2.6.4, NGINX Plus 37.0.2.1 and R36 P6, while the advisory recommends disabling HTTP/3 for CVE-2026-42530 or removing ignore_invalid_headers off and reducing large_client_header_buffers below 2 MB for CVE-2026-42055.

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