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CVE-2026-56840

HIGH 8.8

Published 2026-10-23 · Last modified 2026-10-23

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 endpoint, causing HTTPApproval to return approved=True. This issue has been patched in version 4.6.59.

ELEVATED IMPACT

Severe if exploited (CVSS 8.8), but no known exploitation and low modeled probability. Patch on a normal cadence.

Exploitation likelihood

0.2%chance of exploitation in 30 days · 16th percentile

○ In CISA KEV ○ Catalogued PoC

Impact if exploited

8.8CVSS 3.1 · HIGH

  • ConfidentialityHigh
  • IntegrityHigh
  • AvailabilityHigh

What an attacker needs

  • ✓Access: Reachable over the network — no local access needed
  • ✓Privileges: No account or privileges required
  • ⚠User interaction: A user must take an action (click / open a file)
  • ✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Data snapshot:

Affected

Vendors Mervinpraison

Products Praisonai

Weakness (CWE)

  • CWE-79: : Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References and research data (JSON)

Packages and version ranges

Each advisory describes its own package and affected ranges. A boundary applies to that range; it is not a universal upgrade recommendation.

  • praisonai PyPI

    pkg:pypi/praisonai

    ECOSYSTEM range
    • Introduced version (included): 4.5.2
    • Fixed boundary (excluded): 4.6.59
    176 explicitly listed affected versions

    4.5.10, 4.5.100, 4.5.101, 4.5.102, 4.5.103, 4.5.104, 4.5.105, 4.5.106, 4.5.107, 4.5.108, 4.5.109, 4.5.11, 4.5.110, 4.5.111, 4.5.112, 4.5.113, 4.5.114, 4.5.115, 4.5.117, 4.5.118, 4.5.119, 4.5.12, 4.5.120, 4.5.121, 4.5.122, 4.5.123, 4.5.124, 4.5.125, 4.5.126, 4.5.127, 4.5.128, 4.5.129, 4.5.13, 4.5.130, 4.5.131, 4.5.132, 4.5.133, 4.5.134, 4.5.135, 4.5.136, 4.5.137, 4.5.139, 4.5.14, 4.5.140, 4.5.143, 4.5.144, 4.5.145, 4.5.149, 4.5.15, 4.5.16, 4.5.18, 4.5.19, 4.5.2, 4.5.20, 4.5.21, 4.5.22, 4.5.23, 4.5.24, 4.5.25, 4.5.26, 4.5.27, 4.5.28, 4.5.29, 4.5.3, 4.5.30, 4.5.31, 4.5.32, 4.5.33, 4.5.34, 4.5.35, 4.5.36, 4.5.37, 4.5.38, 4.5.39, 4.5.40, 4.5.41, 4.5.42, 4.5.43, 4.5.44, 4.5.45, 4.5.46, 4.5.48, 4.5.49, 4.5.5, 4.5.51, 4.5.52, 4.5.54, 4.5.55, 4.5.56, 4.5.57, 4.5.58, 4.5.59, 4.5.6, 4.5.60, 4.5.62, 4.5.63, 4.5.64, 4.5.65, 4.5.67, 4.5.68, 4.5.69, 4.5.7, 4.5.70, 4.5.71, 4.5.72, 4.5.73, 4.5.74, 4.5.76, 4.5.77, 4.5.78, 4.5.79, 4.5.8, 4.5.80, 4.5.81, 4.5.82, 4.5.83, 4.5.85, 4.5.87, 4.5.88, 4.5.89, 4.5.9, 4.5.90, 4.5.93, 4.5.94, 4.5.95, 4.5.96, 4.5.97, 4.5.98, 4.6.10, 4.6.11, 4.6.12, 4.6.13, 4.6.14, 4.6.15, 4.6.16, 4.6.18, 4.6.19, 4.6.20, 4.6.21, 4.6.22, 4.6.23, 4.6.24, 4.6.25, 4.6.26, 4.6.27, 4.6.28, 4.6.29, 4.6.30, 4.6.31, 4.6.32, 4.6.33, 4.6.34, 4.6.35, 4.6.36, 4.6.37, 4.6.38, 4.6.39, 4.6.40, 4.6.41, 4.6.42, 4.6.43, 4.6.44, 4.6.45, 4.6.46, 4.6.47, 4.6.48, 4.6.50, 4.6.51, 4.6.52, 4.6.53, 4.6.54, 4.6.55, 4.6.56, 4.6.57, 4.6.58, 4.6.9

    Additional upstream package constraints
    {
  "database": {
    "last_known_affected_version_range": "<= 4.6.58",
    "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-63v4-w882-g4x2/GHSA-63v4-w882-g4x2.json"
  }
}
    GitHub Advisory Database · GHSA-63v4-w882-g4x2 · Updated 2026-07-23T15:11:47.942750129Z
  • praisonai PyPI

    pkg:pypi/praisonai

    ECOSYSTEM range
    • Introduced version (included): 4.5.2
    • Fixed boundary (excluded): 4.6.59
    176 explicitly listed affected versions

    4.5.10, 4.5.100, 4.5.101, 4.5.102, 4.5.103, 4.5.104, 4.5.105, 4.5.106, 4.5.107, 4.5.108, 4.5.109, 4.5.11, 4.5.110, 4.5.111, 4.5.112, 4.5.113, 4.5.114, 4.5.115, 4.5.117, 4.5.118, 4.5.119, 4.5.12, 4.5.120, 4.5.121, 4.5.122, 4.5.123, 4.5.124, 4.5.125, 4.5.126, 4.5.127, 4.5.128, 4.5.129, 4.5.13, 4.5.130, 4.5.131, 4.5.132, 4.5.133, 4.5.134, 4.5.135, 4.5.136, 4.5.137, 4.5.139, 4.5.14, 4.5.140, 4.5.143, 4.5.144, 4.5.145, 4.5.149, 4.5.15, 4.5.16, 4.5.18, 4.5.19, 4.5.2, 4.5.20, 4.5.21, 4.5.22, 4.5.23, 4.5.24, 4.5.25, 4.5.26, 4.5.27, 4.5.28, 4.5.29, 4.5.3, 4.5.30, 4.5.31, 4.5.32, 4.5.33, 4.5.34, 4.5.35, 4.5.36, 4.5.37, 4.5.38, 4.5.39, 4.5.40, 4.5.41, 4.5.42, 4.5.43, 4.5.44, 4.5.45, 4.5.46, 4.5.48, 4.5.49, 4.5.5, 4.5.51, 4.5.52, 4.5.54, 4.5.55, 4.5.56, 4.5.57, 4.5.58, 4.5.59, 4.5.6, 4.5.60, 4.5.62, 4.5.63, 4.5.64, 4.5.65, 4.5.67, 4.5.68, 4.5.69, 4.5.7, 4.5.70, 4.5.71, 4.5.72, 4.5.73, 4.5.74, 4.5.76, 4.5.77, 4.5.78, 4.5.79, 4.5.8, 4.5.80, 4.5.81, 4.5.82, 4.5.83, 4.5.85, 4.5.87, 4.5.88, 4.5.89, 4.5.9, 4.5.90, 4.5.93, 4.5.94, 4.5.95, 4.5.96, 4.5.97, 4.5.98, 4.6.10, 4.6.11, 4.6.12, 4.6.13, 4.6.14, 4.6.15, 4.6.16, 4.6.18, 4.6.19, 4.6.20, 4.6.21, 4.6.22, 4.6.23, 4.6.24, 4.6.25, 4.6.26, 4.6.27, 4.6.28, 4.6.29, 4.6.30, 4.6.31, 4.6.32, 4.6.33, 4.6.34, 4.6.35, 4.6.36, 4.6.37, 4.6.38, 4.6.39, 4.6.40, 4.6.41, 4.6.42, 4.6.43, 4.6.44, 4.6.45, 4.6.46, 4.6.47, 4.6.48, 4.6.50, 4.6.51, 4.6.52, 4.6.53, 4.6.54, 4.6.55, 4.6.56, 4.6.57, 4.6.58, 4.6.9

    Additional upstream package constraints
    {
  "database": {
    "source": "https://github.com/pypa/advisory-database/blob/main/vulns/praisonai/PYSEC-2026-3503.yaml"
  }
}
    PyPA · PYSEC-2026-3503 · Updated 2026-07-23T15:00:16.555962349Z

All CVSS metrics

  • HIGH 8.8 v3.1 · CNA Primary
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • HIGH 8.8 v3.1 · NVD Secondary
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Advisories

Technical & other

Sources: NVD · CVE.org · EPSS