CVE-2026-56840: PraisonAI is a multi-agent teams system

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HIGH 8.8

CVE-2026-56840 is a high-severity flaw (CVSS 8.8) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PraisonAI is a multi-agent teams system. From version 4.5.2 to before version 4.6.59, praisonai.bots.HTTPApproval renders pending tool approval arguments directly into the approval dashboard HTML. An attacker-controlled tool argument can inject JavaScript into that page. When a human opens the approval URL to inspect the risky tool request, the script runs in the dashboard origin and can POST to the same request's /approve/{request_id}/decide end

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 62%)
CISA exploited list	No
Weakness	CWE-79
Published	2026-10-23
Last modified	2026-10-23

Publisher (CNA): GitHub, Inc.

Last updated 2026-10-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

2026-10-23 12:18 UTCPublished CVE record published
2026-10-23 12:18 UTCUpdated Record last modified

Exact fixes by distribution

Python (pip) · praisonai · FIXED · 4.6.59 · vulnerable: >= 4.5.2, <= 4.6.58 · source

pip install --upgrade "praisonai>=4.6.59" pip show praisonai

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-56840?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-56840 being exploited?

CVE-2026-56840 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-56840 affect?

CVE-2026-56840 affects affected software. Severity is high (CVSS 8.8). PraisonAI is a multi-agent teams system. From version 4.5.2 to before version 4.6.59, praisonai.bots.HTTPApproval renders pending tool approval arguments directly into the approval dashboard HTML. An attacker-controlled tool argument can in

How urgent is CVE-2026-56840?

Priority 40/100. High severity

References

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