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Advisory record · GHSA-qj9c-59p6-8cgx

PraisonAI: AgentMail webhook lacks signature verification, allowing unauthenticated message injection and sender spoofing

CVSS 6.9 MediumEPSS 0.0031 · 24th percentile

Published by the GitHub Advisory Database at 7 Oct 2026, 14:06 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
praisonaiPyPI<4.6.784.6.78
Identifiers
GHSA-qj9c-59p6-8cgx · CVE-2026-61428 · PYSEC-2026-4259
Weakness (CWE)
CWE-290 · CWE-345 · CWE-862
Tags
Published
7 Oct 2026
Updated
15 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The praisonai package before 4.6.78 has an AgentMail bot whose webhook mode accepts inbound message events without verifying any signature or authenticating the sender. A remote network peer can send a forged message with a spoofed sender address, which bypasses sender allow and block lists, and the agent will process it and reply to an address the attacker chooses. Upgrade to praisonai 4.6.78, which fixes this. The source gives no workaround.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.9 Medium 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.0031, the 24th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:08 UTC First seen by agentprime
  2. 31 Oct 2026, 14:08 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.