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CVE-2026-41873— Pony Mail: Admin account takeover via request smuggling

Quick assessment

Affected
Apache Software Foundation Pony Mail
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Apache Pony Mail是美国阿帕奇（Apache）基金会的一款具有邮件归档、查看和交互功能的插件。 Apache Pony Mail存在环境问题漏洞，该漏洞源于HTTP请求解释不一致，可能导致管理员账户接管。以下版本受到影响：所有Lua实现版本。

AI Predicted 9.8 Difficulty: Easy EPSS 0.74% · P53

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
Apache Software Foundation Pony Mail ≤ * affected
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I. Basic Information for CVE-2026-41873

Vulnerability Information
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Vulnerability Title
Pony Mail: Admin account takeover via request smuggling
Source: CVE Program / CVE List V5
Vulnerability Description
** UNSUPPORTED WHEN ASSIGNED ** Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Pony Mail leading to admin account takeover. This issue affects all versions of the Lua implementation of Pony Mail. There is a Python implementation under development under the name "Pony Mail Foal" that is not affected by this issue, but hasn't been released yet. As the Lua implementation of this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative or restrict access to the instance to trusted users. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
HTTP请求的解释不一致性(HTTP请求私运)
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Pony Mail 环境问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Pony Mail是美国阿帕奇（Apache）基金会的一款具有邮件归档、查看和交互功能的插件。 Apache Pony Mail存在环境问题漏洞，该漏洞源于HTTP请求解释不一致，可能导致管理员账户接管。以下版本受到影响：所有Lua实现版本。
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
Apache Software Foundation Pony Mail 0 ~ * -

II. Public POCs for CVE-2026-41873

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III. Intelligence Information for CVE-2026-41873

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Mailing List Discussions for CVE-2026-41873 (1)

Same Patch Batch · Apache Software Foundation · 2026-04-28 · 8 CVEs total

CVE-2025-48431 Apache Thrift: Specially crafted input can crash a c_glib Thrift server with invalid point
CVE-2026-41602 Apache Thrift: Go TFramedTransport uint32 overflow
CVE-2026-41604 Apache Thrift: Swift Range crash in skip()
CVE-2026-41605 Apache Thrift: Swift Compact Protocol integer overflow
CVE-2026-41606 Apache Thrift: c_glib dispatch stack overflow
CVE-2026-41607 Apache Thrift: C++ JSON OOB read
CVE-2026-41636 Apache Thrift: Node.js skip() recursion

IV. Related Vulnerabilities

Same vendor: Apache Software Foundation
Same weakness: CWE-444

V. Comments for CVE-2026-41873

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