JLSEC-2026-1281

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Source

https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-1281.md

Import Source

https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1281.json

JSON Data

https://api.test.osv.dev/v1/vulns/JLSEC-2026-1281

Upstream

CVE-2020-25613

Published

2026-08-13T09:49:53.975Z

Modified

2026-08-13T10:00:03.322545018Z

Severity

5.0 (Medium) CVSS_V2 - AV:N/AC:L/Au:N/C:N/I:P/A:N CVSS Calculator
7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator

Summary

[none]

Details

An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a simple HTTP server bundled with Ruby, had not checked the transfer-encoding header value rigorously. An attacker may potentially exploit this issue to bypass a reverse proxy (which also has a poor header check), which may lead to an HTTP Request Smuggling attack.

Database specific

{
    "license": "CC-BY-4.0",
    "sources": [
        {
            "id": "CVE-2020-25613",
            "modified": "2026-06-17T03:06:58.977Z",
            "imported": "2026-08-12T15:35:15.104Z",
            "database_specific": {
                "status": "Modified"
            },
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25613",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2020-25613",
            "published": "2020-10-06T13:15:13.823Z"
        }
    ]
}

References

Affected packages

Julia / ruby_jll

Package

Name: ruby_jll
Purl: pkg:julia/ruby_jll?uuid=3ea333e9-fd8a-53ca-adba-366e8551b7d5

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-2026-1281.json"