AgenticMail api/core input validation

Summaryinfo

A vulnerability marked as critical has been reported in AgenticMail. Affected is an unknown function of the component api/core. This manipulation causes input validation. This vulnerability is tracked as CVE-2026-47255. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in AgenticMail (the affected version is unknown). It has been declared as critical. Affected by this vulnerability is an unknown code of the component api/core. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

AgenticMail gives AI agents real email addresses and phone numbers. @agenticmail/api prior to version 0.9.32 and @agenticmail/core prior to version 0.9.10 had weakness related to validation and and binding of inactive-agent hour filtering; storage SQL identifier validation; metadata-backed ownership checks for raw storage SQL; blocking direct storage metadata access through raw SQL; fail-closed outbound worker secret handling; SMTP envelope/header control-character validation before command construction; and TLS certificate verification as the default for MailSender with an explicit opt-out for local development. @agenticmail/api prior to version 0.9.32 and @agenticmail/core prior to version 0.9.10 are patched.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-47255 since 05/19/2026. The exploitation appears to be easy. The attack can be launched remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/21/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Mail Server Software

Name

• AgenticMail

Website

• Product: https://github.com/agenticmail/agenticmail/

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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