CVE-2026-57126: Mervinpraison Praisonai

High severity, CVSS 8.5. EPSS: 0.4% chance of exploitation in the next 30 days.

PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.58, SpiderTools._validate_url calls _host_is_blocked, which checks literal host encodings but does not resolve DNS names before scrape_page, crawl, extract_links, extract_text, or URL-mention fetches connect. An attacker-controlled hostname resolving to a loopback, private, link-local, or cloud-metadata address therefore bypasses the SSRF policy without a rebinding race and can expose internal responses to the agent. This issue is fixed in praisonaiagents 1.6.58.

Affected products

• Mervinpraison Praisonai: before 1.6.59 (fixed in 1.6.59)

Published 2026-09-14. Last modified 2026-09-15.