{"cve":"CVE-2026-55526","nvd":{"published":"2026-08-25T15:16:33.300","modified":"2026-09-09T21:07:31.353","status":"Deferred","description":"PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.58, spider_tools._host_is_blocked() does not resolve ordinary hostnames before scrape_page fetches them. A hostname such as 127.0.0.1.nip.io passes validation and resolves to loopback, permitting internal HTTP access. The fix uses socket.getaddrinfo and fails closed on DNS errors. This issue is fixed in version 1.6.58.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N","score":8.5},"cwes":["CWE-350","CWE-918"],"references":["https://github.com/MervinPraison/PraisonAI/commit/2f9677abb2ea68eab864ee8b6a828fd0141612e1","https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.58","https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-x44h-65qv-cw74"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:17.453294893+00:00"},"epss":{"cve":"CVE-2026-55526","score":0.00357,"percentile":0.29427,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-x44h-65qv-cw74","url":"https://osv.dev/vulnerability/GHSA-x44h-65qv-cw74","summary":"praisonaiagents has an SSRF protection bypass in `spider_tools._host_is_blocked()` via DNS-resolved hostnames (`127.0.0.1.nip.io`)","modified":"2026-09-10T12:25:58.119615191Z","packages":[{"ecosystem":"PyPI","name":"praisonaiagents","purl":"pkg:pypi/praisonaiagents","ranges":["<1.6.58"],"fixed":["1.6.58"]}]},{"id":"PYSEC-2026-3905","url":"https://osv.dev/vulnerability/PYSEC-2026-3905","summary":"praisonaiagents has an SSRF protection bypass in `spider_tools._host_is_blocked()` via DNS-resolved hostnames (`127.0.0.1.nip.io`)","modified":"2026-09-10T12:15:12.775195544Z","packages":[{"ecosystem":"PyPI","name":"praisonaiagents","purl":"pkg:pypi/praisonaiagents","ranges":["<1.6.58"],"fixed":["1.6.58"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}