CVE-2026-41873

CRITICAL

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/28/2026

Last Modified4/29/2026

Sourcenvd

Honeypot Sightings0

Affected Products

apache:pony_mail

Weaknesses (CWE)

CWE-444

References

https://lists.apache.org/thread/1c7jtxjobh280kqc13fzw1cg57xrz951(security@apache.org)

http://www.openwall.com/lists/oss-security/2026/04/28/17(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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