JLSEC-2026-1270

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Source

https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-1270.md

Import Source

https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1270.json

JSON Data

https://api.osv.dev/v1/vulns/JLSEC-2026-1270

Upstream

CVE-2026-32240

EUVD-2026-11688

Published

2026-08-12T19:53:38.652Z

Modified

2026-08-12T20:00:03.475496549Z

Severity

6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator

Summary

[none]

Details

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.

Database specific

{
    "sources": [
        {
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-32240",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32240",
            "imported": "2026-08-12T15:05:32.508Z",
            "database_specific": {
                "status": "Analyzed"
            },
            "id": "CVE-2026-32240",
            "published": "2026-03-12T20:16:05.190Z",
            "modified": "2026-06-17T10:35:24.510Z"
        },
        {
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-11688",
            "modified": "2026-03-13T16:14:32Z",
            "imported": "2026-08-12T15:05:33.861Z",
            "published": "2026-03-12T19:35:57Z",
            "id": "EUVD-2026-11688",
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-11688"
        }
    ],
    "license": "CC-BY-4.0"
}

References

Affected packages

Julia / capnproto_jll

Package

Name: capnproto_jll
Purl: pkg:julia/capnproto_jll?uuid=3576fdfd-e245-5854-bcf7-dae6dc3117e0

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Database specific

source

"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1270.json"