cvedb.io
CVE-2026-32239
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2026-03-12T20:16:05.010 · Last modified 2026-06-17T10:35:24.370

Summary

Cap'n Proto is a data interchange format and capability-based RPC system. Prior to 1.4.0, a negative Content-Length value was converted to unsigned, treating it as an impossibly large length instead. In theory, this bug could enable HTTP request/response smuggling. This vulnerability is fixed in 1.4.0.

Affected products

capnproto — capnproto

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.