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CVE-2026-56835

HIGH 8.3

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

PraisonAI is a multi-agent teams system. From version 3.11.0 to before version 4.6.59, PraisonAI's Slack bot applies its configured allowed_users, allowed_channels, and unknown-user pairing policy in the normal Slack message event handler, but not in the adjacent Slack app_mention event handler. A Slack workspace user who can mention the bot in a channel where the Slack app is present can trigger the configured PraisonAI agent even when: the sender is not in BotConfig.allowed_users; the channel is not in BotConfig.allowed_channels; unknown_user_policy="deny" is configured; and the same event content is correctly dropped by the normal message handler. This issue has been patched in version 4.6.59.

ELEVATED IMPACT

Severe if exploited (CVSS 8.3), but no known exploitation and low modeled probability. Patch on a normal cadence.

Exploitation likelihood

0.2%chance of exploitation in 30 days · 12th percentile

○ In CISA KEV ○ Catalogued PoC

Impact if exploited

8.3CVSS 3.1 · HIGH

  • ConfidentialityHigh
  • IntegrityHigh
  • AvailabilityLow

What an attacker needs

  • ✓Access: Reachable over the network — no local access needed
  • ⚠Privileges: Requires a low-privilege account
  • ✓User interaction: No user interaction needed
  • ✓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-862: : Missing Authorization
  • CWE-863: : Incorrect Authorization

CVSS vector

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

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): 3.11.0
    • Fixed boundary (excluded): 4.6.59
    215 explicitly listed affected versions

    3.11.0, 3.11.1, 3.11.10, 3.11.11, 3.11.12, 3.11.13, 3.11.14, 3.11.2, 3.11.3, 3.11.4, 3.11.8, 3.11.9, 3.12.0, 3.12.1, 3.12.2, 3.12.3, 4.0.0, 4.1.0, 4.2.0, 4.2.1, 4.2.2, 4.2.3, 4.2.4, 4.3.0, 4.3.1, 4.4.0, 4.4.10, 4.4.11, 4.4.12, 4.4.2, 4.4.3, 4.4.4, 4.4.5, 4.4.6, 4.4.7, 4.4.8, 4.4.9, 4.5.0, 4.5.1, 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-qvpf-j64c-jmhr/GHSA-qvpf-j64c-jmhr.json"
  }
}
    GitHub Advisory Database · GHSA-qvpf-j64c-jmhr · Updated 2026-07-23T15:11:23.177465510Z
  • praisonai PyPI

    pkg:pypi/praisonai

    ECOSYSTEM range
    • Introduced version (included): 3.11.0
    • Fixed boundary (excluded): 4.6.59
    215 explicitly listed affected versions

    3.11.0, 3.11.1, 3.11.10, 3.11.11, 3.11.12, 3.11.13, 3.11.14, 3.11.2, 3.11.3, 3.11.4, 3.11.8, 3.11.9, 3.12.0, 3.12.1, 3.12.2, 3.12.3, 4.0.0, 4.1.0, 4.2.0, 4.2.1, 4.2.2, 4.2.3, 4.2.4, 4.3.0, 4.3.1, 4.4.0, 4.4.10, 4.4.11, 4.4.12, 4.4.2, 4.4.3, 4.4.4, 4.4.5, 4.4.6, 4.4.7, 4.4.8, 4.4.9, 4.5.0, 4.5.1, 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-2026-3518.yaml"
  }
}
    PyPA · PYSEC-2026-3518 · Updated 2026-07-23T15:00:20.841431784Z

All CVSS metrics

  • HIGH 8.3 v3.1 · CNA Primary
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
  • HIGH 8.3 v3.1 · NVD Secondary
    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

References

Advisories

Technical & other

Sources: NVD · CVE.org · EPSS