PT-2026-80511 · Julia · Capnproto Jll
Published
2026-08-12
·
Updated
2026-08-12
CVSS v3.1
6.5
Medium
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
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.
Fix
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Related Identifiers
Affected Products
Capnproto Jll