CVE Feed

    Dashboard / CVE / CVE-2026-32240

    CVE-2026-32240

    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.

    Published:Mar 12, 2026
    Last Modified:Mar 23, 2026
    EPS:Mar 12, 2026
    EPSS Score:0.00077
    CVSS Score:6.5

    Affected Products

    Vendor
    Capnproto
    Product
    Capnproto

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-59704 (CVSS 7.1) — Cap's GET /api/video/ai endpoint fails to validate user ownership or membership before returning private video…
    CVE-2026-32239 (CVSS 6.3) — Cap'n Proto is a data interchange format and capability-based RPC system. Prior to 1.4.0, a negative Content-L…
    CVE-2023-48230 (CVSS 5.9) — Cap'n Proto is a data interchange format and capability-based RPC system. In versions 1.0 and 1.0.1, when usin…
    CVE-2022-46149 (CVSS 5.4) — Cap'n Proto is a data interchange format and remote procedure call (RPC) system. Cap'n Proro prior to versions…
    CVE-2015-2310 (CVSS 9.1) — Integer overflow in layout.c++ in Sandstorm Cap'n Proto before 0.4.1.1 and 0.5.x before 0.5.1.1 allows remote …
    CVE-2015-2312 (CVSS 7.5) — Sandstorm Cap'n Proto before 0.4.1.1 and 0.5.x before 0.5.1.1 allows remote peers to cause a denial of service…
    CVE-2015-2311 (CVSS 9.8) — Integer underflow in Sandstorm Cap'n Proto before 0.4.1.1 and 0.5.x before 0.5.1.1 might allow remote peers to…
    CVE-2015-2313 (CVSS 7.5) — Sandstorm Cap'n Proto before 0.4.1.1 and 0.5.x before 0.5.1.2, when an application invokes the totalSize metho…
    CVE-2017-7892 (CVSS 7.5) — Sandstorm Cap'n Proto before 0.5.3.1 allows remote crashes related to a compiler optimization. A remote attack…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High