GHSA-4mp6-8448-9vgv: Duplicate Advisory PraisonAI: AgentMail Webhook Lacks Signature Vulnerability

MODERATE
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CVSS 7.3
CWE-290
Published
Advisory Summary

GHSA-4mp6-8448-9vgv is a MODERATE (CVSS 7.3) praisonai: agentmail webhook lacks signature vulnerability (CWE-290: Authentication Bypass by Spoofing) affecting Duplicate Advisory libraries in the PyPI ecosystem. The issue involves praisonai: agentmail webhook lacks signature verification, allowing unauthenticated message injection and sender spoofing. Remediation is available in the latest vendor maintenance releases.

GHSA-4mp6-8448-9vgv at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-4mp6-8448-9vgv
Severity MODERATE
CVSS v3.1 Base Score 7.3
CWE Classification CWE-290: Authentication Bypass by Spoofing
Affected Product Duplicate Advisory
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix GHSA-4mp6-8448-9vgv

To remediate this vulnerability, upgrade all affected Duplicate Advisory dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

praisonai fixed: Latest secure release 
pip install praisonai>=Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show praisonai

How to Check if You Are Affected

To determine whether your Python environment is affected by GHSA-4mp6-8448-9vgv, inspect your installed packages using pip:

pip show praisonai

Analyze the terminal output to locate any version of Duplicate Advisory in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The pip show praisonai command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-290: Authentication Bypass by Spoofing, where this attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. In Duplicate Advisory, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-qj9c-59p6-8cgx. This link is maintained to preserve external references. ### Original Description PraisonAI AgentMail versions before 4.6.78 lack signature verification in webhook mode, allowing unauthenticated attackers to inject messages with spoofed sender addresses. Attackers can POST crafted message.received events to the webhook endpoint to inject arbitrary content into the agent and trigger replies to attacker-controlled addresses, bypassing sender allow/block lists.

GHSA-4mp6-8448-9vgv Affected Duplicate Advisory Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
praisonai
pypi/praisonai
PyPI
≤ 4.6.77

References

GitHub Advisory / Wiki ADVISORY
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-qj9c-59p6-8cgx
NVD — GHSA-4mp6-8448-9vgv NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-61428
www.vulncheck.com/advisories/praisona... WEB
https://www.vulncheck.com/advisories/praisonai-agentmail-before-message-injection-via-webhook

Frequently Asked Questions

What is GHSA-4mp6-8448-9vgv?
GHSA-4mp6-8448-9vgv is a security vulnerability in Duplicate Advisory involving PraisonAI: AgentMail webhook lacks signature verification, allowing unauthenticated message injection and sender spoofing under CWE-290: Authentication Bypass by Spoofing.
Which Duplicate Advisory versions are affected?
Affected versions include releases prior to current release patches across affected packages: praisonai.
What version fixes GHSA-4mp6-8448-9vgv?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is praisonai affected?
Yes, praisonai is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of GHSA-4mp6-8448-9vgv?
GHSA-4mp6-8448-9vgv has a CVSS v3.1 base score of 7.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
What CWE is associated with GHSA-4mp6-8448-9vgv?
GHSA-4mp6-8448-9vgv is classified under CWE-290: Authentication Bypass by Spoofing (This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.).
How can I check PyPI dependencies for GHSA-4mp6-8448-9vgv?
Run the dependency tree command: 'pip show praisonai'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-4mp6-8448-9vgv",
  "modified" : "2026-10-07T14:06:49Z",
  "published" : "2026-07-11T15:30:23Z",
  "withdrawn" : "2026-10-07T14:06:49Z",
  "aliases" : [ ],
  "summary" : "Duplicate Advisory: PraisonAI: AgentMail webhook lacks signature verification, allowing unauthenticated message injection and sender spoofing",
  "details" : "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-qj9c-59p6-8cgx. This link is maintained to preserve external references.\n\n### Original Description\nPraisonAI AgentMail versions before 4.6.78 lack signature verification in webhook mode, allowing unauthenticated attackers to inject messages with spoofed sender addresses. Attackers can POST crafted message.received events to the webhook endpoint to inject arbitrary content into the agent and trigger replies to attacker-controlled addresses, bypassing sender allow/block lists.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
  }, {
    "type" : "CVSS_V4",
    "score" : "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "praisonai"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "4.6.77"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-qj9c-59p6-8cgx"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-61428"
  }, {
    "type" : "WEB",
    "url" : "https://www.vulncheck.com/advisories/praisonai-agentmail-before-message-injection-via-webhook"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-290" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-10-07T14:06:49Z",
    "nvd_published_at" : "2026-07-11T14:16:22Z"
  }
}