Unauthenticated event injection via omitted token checks
Published Sep 14, 2026 · Updated Sep 14, 2026
Authentication bypass in PraisonAI before 1.6.58 allows remote attackers to inject SSE events and read server configuration. AgentServer._create_app registers /publish, /events, and /info without middleware or route dependencies that compare requests with ServerConfig.auth_token. Network reachability is sufficient; /publish broadcasts attacker-chosen events to connected clients, while /info reveals configuration and client counts.
Summary
What happened
Authentication bypass in PraisonAI before 1.6.58 allows remote attackers to inject SSE events and read server configuration. AgentServer._create_app registers /publish, /events, and /info without middleware or route dependencies that compare requests with ServerConfig.auth_token. Network reachability is sufficient; /publish broadcasts attacker-chosen events to connected clients, while /info reveals configuration and client counts.
The record
- CVE
- CVE-2026-57128
- Published
- Sep 14, 2026
- Updated
- Sep 14, 2026
- Vendor
- PraisonAI
- Product
- PraisonAI
- Classifications
- CWE-862, CWE-306, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 14, 2026CVE publishedPublication date reported by the CVE source.
- Sep 14, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 1.6.58
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Upstream AgentServer unauthenticated-route proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo