Medium severity6.5NVD Advisory· Published Mar 12, 2026· Updated Jun 17, 2026
CVE-2026-32239
CVE-2026-32239
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
5- osv-coords2 versionspkg:rpm/opensuse/capnproto&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/capnproto&distro=openSUSE%20Tumbleweed
< 1.4.0-160000.1.1+ 1 more
- (no CPE)range: < 1.4.0-160000.1.1
- (no CPE)range: < 1.4.0-2.1
Patches
Vulnerability mechanics
References
5- github.com/capnproto/capnproto/commit/2744b3c012b4aa3c31cefb61ec656829fa5c0e36nvdPatch
- github.com/capnproto/capnproto/commit/e929f0ba7901a6b8f4b5ba9a4db00af43288cbb0nvdPatch
- github.com/capnproto/capnproto/security/advisories/GHSA-qjx3-pp3m-9jpmnvdVendor Advisory
- capnproto.org/capnproto-c++-1.4.0.tar.gznvdProduct
- capnproto.org/capnproto-c++-win32-1.4.0.zipnvdProduct
News mentions
0No linked articles in our index yet.