CVE-2026-55526: PraisonAI Agents — HIGH

Q: Is CVE-2026-55526 actively exploited?

No confirmed active exploitation of CVE-2026-55526 has been reported, but organizations should still patch proactively.

Q: How to fix CVE-2026-55526?

Update to patched version: PraisonAI Agents 1.6.58.

Q: What is the CVSS score for CVE-2026-55526?

CVE-2026-55526 has a CVSS v3.1 base score of 8.5 (HIGH).

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...

Full CISO analysis pending enrichment.

What systems are affected?

Package	Ecosystem	Vulnerable Range	Patched
PraisonAI Agents	pip	< 1.6.58	`1.6.58`
20 dependents 67% patched ~6d to patch Full package profile →

Do you use PraisonAI Agents? You're affected.

How severe is it?

CVSS 3.1

8.5 / 10

EPSS

N/A

Exploitation Status

No known exploitation

Sophistication

N/A

What is the attack surface?

AV Network

AC Low

PR Low

UI None

S Changed

C High

I Low

A None

What should I do?

Patch available

Update PraisonAI Agents to version 1.6.58

Which compliance frameworks are affected?

Compliance analysis pending. Sign in for full compliance mapping when available.

Frequently Asked Questions

What is CVE-2026-55526?

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.

Is CVE-2026-55526 actively exploited?

No confirmed active exploitation of CVE-2026-55526 has been reported, but organizations should still patch proactively.

How to fix CVE-2026-55526?

Update to patched version: PraisonAI Agents 1.6.58.

What is the CVSS score for CVE-2026-55526?

CVE-2026-55526 has a CVSS v3.1 base score of 8.5 (HIGH).

What are the technical details?

Original Advisory

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.

Weaknesses (CWE)

CWE-350 Reliance on Reverse DNS Resolution for a Security-Critical Action Primary CWE-350 Reliance on Reverse DNS Resolution for a Security-Critical Action Primary CWE-918 Server-Side Request Forgery (SSRF) Primary CWE-918 Server-Side Request Forgery (SSRF) Primary

CWE-350 — Reliance on Reverse DNS Resolution for a Security-Critical Action: The product performs reverse DNS resolution on an IP address to obtain the hostname and make a security decision, but it does not properly ensure that the IP address is truly associated with the hostname.

[Architecture and Design] Use other means of identity verification that cannot be simply spoofed. Possibilities include a username/password or certificate.
[Implementation] Perform proper forward and reverse DNS lookups to detect DNS spoofing.

Source: MITRE CWE corpus.