nginx vulnerabilities and fixes

Recent CVEs affecting nginx, with upgrade or downgrade steps. 1 tracked.

nginx has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 1. Most recent: 2025-02-05. Highest priority: CVE-2025-23419 (score 42/100).

• CVE-2025-23419 MEDIUM 4.3 UPGRADE UPGRADE When multiple server blocks are configured to share the same IP address and port, an attacker can use session

FAQ

How do I fix nginx vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is nginx being exploited right now?

None of the tracked nginx CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which nginx CVE should I patch first?

CVE-2025-23419 currently ranks highest (42/100): When multiple server blocks are configured to share the same IP address and port, an attacker can use session .

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