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CVE-2026-47255— AgenticMail API/storage and outbound relay hardening

Quick assessment

Affected
agenticmail @agenticmail/api
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

AgenticMail是AgenticMail公司的一款面向人工智能代理的电子邮件、短信和电话基础设施。 AgenticMail 0.9.32之前版本和@agenticmail/core 0.9.10之前版本存在安全漏洞，该漏洞源于输入验证和绑定、SQL标识符验证、元数据所有权检查、原始SQL存储访问控制、出站工作者密钥处理、SMTP命令控制字符验证以及TLS证书验证等多个方面存在缺陷，可能导致完整性受损和可用性降低。

CVSS 8.2 · High EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 2

VendorProduct Version RangeStatus
agenticmail @agenticmail/api < 0.9.32 affected
agenticmail @agenticmail/core < 0.9.10 affected
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I. Basic Information for CVE-2026-47255

Vulnerability Information
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Vulnerability Title
AgenticMail API/storage and outbound relay hardening
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
AgenticMail 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AgenticMail是AgenticMail公司的一款面向人工智能代理的电子邮件、短信和电话基础设施。 AgenticMail 0.9.32之前版本和@agenticmail/core 0.9.10之前版本存在安全漏洞，该漏洞源于输入验证和绑定、SQL标识符验证、元数据所有权检查、原始SQL存储访问控制、出站工作者密钥处理、SMTP命令控制字符验证以及TLS证书验证等多个方面存在缺陷，可能导致完整性受损和可用性降低。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
agenticmail @agenticmail/api < 0.9.32 -
agenticmail @agenticmail/core < 0.9.10 -

II. Public POCs for CVE-2026-47255

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Success marker: VULNERABLE: SMTP CRLF injection confirmed; injected recipient=proof@secret.internal; proof=PROOF_ed46d09d53da5afe
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
Upgrade to Pro+
claude_code · 7542 chars
GitHub 复现环境（可 clone 直接跑）
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-47255

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Patches & Fixes for CVE-2026-47255 (4)

Vendor Advisories for CVE-2026-47255 (1)

Other References for CVE-2026-47255 (2)

Same Patch Batch · agenticmail · 2026-07-20 · 3 CVEs total

CVE-2026-57494 AgenticMail: Cross-agent task authorization bypass in AgenticMail API
CVE-2026-57495 AgenticMail: Unauthenticated inbound mail triggers bypassPermissions resume of the operato

IV. Related Vulnerabilities

Same product: @agenticmail/api
Same vendor: agenticmail
Same weakness: CWE-20

V. Comments for CVE-2026-47255

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