PatchTheCVEphpseclib vulnerabilities and fixes
Recent CVEs affecting phpseclib, with upgrade or downgrade steps. 1 tracked.
phpseclib has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 1. Most recent: 2026-06-22. Highest priority: CVE-2026-55599 (score 33/100).
- CVE-2026-55599 MEDIUM 5.8 UPGRADE phpseclib is a PHP secure communications library
FAQ
How do I fix phpseclib 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 phpseclib being exploited right now?
None of the tracked phpseclib CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which phpseclib CVE should I patch first?
CVE-2026-55599 currently ranks highest (33/100): phpseclib is a PHP secure communications library.