CVE-2026-32240 - Cap'n Proto: Integer overflow in KJ-HTTP chunk size
CVE ID :CVE-2026-32240
Published : March 12, 2026, 8:16 p.m. | 1 hour, 13 minutes ago
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.
Severity: 6.3 | MEDIUM
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Published : March 12, 2026, 8:16 p.m. | 1 hour, 13 minutes ago
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.
Severity: 6.3 | MEDIUM
Visit the link for more details, such as CVSS details, affected products, timeline, and more...