CVE-2026-61428

PraisonAI AgentMail before 4.6.78 Message Injection via Webhook

HIGH
7.3
CVSS Score
Published: July 11, 2026 at 01:01 PM UTC
Updated: October 25, 2026 at 03:10 PM UTC
1 product affected across 1 vendorPraisonAI

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Severity
HIGH7.3
Exploit prediction
EPSS 0.3%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.6.78
Affected range stops below 4.6.78, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 4.6.78 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.3HIGHVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-290

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