PraisonAI is a multi-agent teams system. From 1.5.0 until 1.7.2, MCPServer.startHttp() in src/praisonai-ts/src/mcp/server.ts binds without a host restriction and forwards every HTTP POST request to handleRequest() without authentication or authorization. Any network client that can reach the port can call tools/list, tools/call, resources/read, or prompts/get, causing registered handlers to run with server-side credentials and process privileges or disclose registered data. An initial remediation was released in version 1.7.2.
CVE-2026-57139
CRITICALPre-NVD 9.89.8—Elevated
EchelonGraph scoreMEDIUM confidence
This critical-severity CVE scores 9.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 65% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, secondary
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: Elevated riskExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EG Risk
- 75(Attend)EG Risk 75/100SSVC: Attend
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity98% × 45%Exploitation40% × 40%Automatability100% × 15%Action: Remediate soon — notable exploitation risk. - EPSS PROB
- 0%
- EPSS %ILE
- 36%
- KEV
- Not listed
Published
June 18, 2026
Last Modified
September 17, 2026
Advisory Details (3)
Auto-updated Sep 17, 2026🔬 Proof of concept available. Patch available. Sources: github_commit, github_release, github.
github Patch Available🟡 PoC Available
npm Package: MCPServer Exposes Unauthenticated HTTP tools/call · Advisory · MervinPraison/PraisonAI · GitHub
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-j4f3-55x4-r6q2github_release Patch Available
PraisonAI v4.6.60
Patch available: MervinPraison/PraisonAI v4.6.60
https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.60github_commit Patch Available
commit 709a03878537 (MervinPraison/PraisonAI)
Patch available: MervinPraison/PraisonAI v4.6.144 (contains commit 709a03878537)
https://github.com/MervinPraison/PraisonAI/commit/709a0387853709a5e2f2c34680fa64cada252c27Vendor Advisories for CVE-2026-57139(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| praisonai | — | 1.7.2 | — |
Weakness Classification(3)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 7× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-18 19:28 UTCEPSS rescore
- 2026-09-17 19:31 UTCEPSS rescore
- 2026-09-17 15:30 UTCEG score recompute
- 2026-09-17 14:35 UTCEG score recompute
- 2026-09-16 14:08 UTCEPSS rescore
- 2026-09-16 05:15 UTCEPSS rescore
- 2026-09-15 11:29 UTCEG score recompute
- 2026-07-30 22:29 UTCEG score recompute
- 2026-07-26 17:45 UTCEG score recompute
- 2026-07-23 03:20 UTCEG score recompute
- 2026-07-20 21:33 UTCEG score recompute
Frequently asked(5)
What is CVE-2026-57139?
CVE-2026-57139 is a critical vulnerability published on June 18, 2026. PraisonAI is a multi-agent teams system. From 1.5.0 until 1.7.2, MCPServer.startHttp() in src/praisonai-ts/src/mcp/server.ts binds without a host restriction and forwards every HTTP POST request to handleRequest() without authentication or authorization. Any network client that can reach the port…
When was CVE-2026-57139 disclosed?
CVE-2026-57139 was first published in the National Vulnerability Database on June 18, 2026, with the most recent update on September 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57139 actively exploited?
CVE-2026-57139 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 64.3% of all scored CVEs.
What is the CVSS score of CVE-2026-57139?
CVE-2026-57139 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-57139?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57139, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-57139
Is Your Infrastructure Affected by CVE-2026-57139?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.