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  4. CVE 2026 57128 praisonai unauthenticated event injection via sse
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Back to active CVEs
Medium · CVSS 4.3CVE-2026-57128

PraisonAI: Unauthenticated Event Injection via SSE `/publish` EndpointCVE-2026-57128

Answer in brief

CVE-2026-57128 records a Medium severity (CVSS 4.3) vulnerability in PraisonAI: Unauthenticated Event Injection via SSE `/publish` Endpoint. The current sources do not mark it as known exploited. The current feed maps MervinPraison/PraisonAI (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 14, 2026Updated Sep 16, 2026Source checked Oct 29, 2026First seen by HOL Sep 14, 2026Material review Sep 16, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 4.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 4.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps MervinPraison/PraisonAI (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
MervinPraison/PraisonAIgeneric<1.6.581.6.58

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for MervinPraison/PraisonAI.
  2. 2Review the reported fix. Update MervinPraison/PraisonAI to 1.6.58 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 14, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 16, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 14, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source description

PraisonAI is a multi-agent teams system. Prior to praisonaiagents 1.6.58, the SSE server in src/praisonai-agents/praisonaiagents/server/server.py does not consult ServerConfig.auth_token before handling /publish, /events, or /info requests. A network client that can reach the server can broadcast arbitrary events to connected clients and obtain server configuration and client-count information. This issue is fixed in praisonaiagents 1.6.58.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • @sylphx/pdf-reader-mcp: HTTP transport accepts unauthenticated requests despite a configured MCP_API_KEYAlso CWE-306

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-306
Source
CVE List V5
Source checked
Oct 29, 2026
References
3 linked sources
Open source record