CVE-2026-41873
published 2026-04-28CVE-2026-41873: ** UNSUPPORTED WHEN ASSIGNED ** Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Pony Mail leading to admin…
PriorityP259critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.44%
35.4th percentile
** 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.Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apache_software_foundation | pony_mail | <= * | — |
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GHSA
GHSA-cvw6-x8c3-583g: ** UNSUPPORTED WHEN ASSIGNED ** Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Pony Mail leading to
ghsa_unreviewed·2026-04-28
CVE-2026-41873 [CRITICAL] CWE-444 GHSA-cvw6-x8c3-583g: ** UNSUPPORTED WHEN ASSIGNED ** Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Pony Mail leading to
** 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.
VulDB
Apache Pony Mail HTTP Request request smuggling (EUVD-2026-26065)
vuldb·2026-04-28·CVSS 9.8
CVE-2026-41873 [CRITICAL] Apache Pony Mail HTTP Request request smuggling (EUVD-2026-26065)
A vulnerability marked as critical has been reported in Apache Pony Mail. This issue affects some unknown processing of the component HTTP Request Handler. Performing a manipulation results in http request smuggling. This vulnerability only affects products that are no longer supported by the maintainer.
This vulnerability is cataloged as CVE-2026-41873. It is possible to initiate the attack remotely. There is no exploit available.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-04-28
Published