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CVE-2026-32240
Published: Mar 12, 2026
Modified: Mar 13, 2026
PUBLISHED
Description
Cap'n Proto is a data interchange format and capability-based RPC system. Prior to 1.4.0, when using Transfer-Encoding: chunked, if a chunk's size parsed to a value of 2^64 or larger, it would be truncated to a 64-bit integer. In theory, this bug could enable HTTP request/response smuggling. This vulnerability is fixed in 1.4.0.
| Vendor | Product | Versions |
|---|---|---|
capnproto | capnproto | affected < 1.4.0 |
References
https://capnproto.org/capnproto-c++-1.4.0.tar.gz
x_refsource_MISC
https://capnproto.org/capnproto-c++-win32-1.4.0.zip
x_refsource_MISC
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