JLSEC-2026-1157

See a problem?
Please try reporting it to the source first.

Source

https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-1157.md

Import Source

https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1157.json

JSON Data

https://api.osv.dev/v1/vulns/JLSEC-2026-1157

Upstream

CVE-2026-58055

EUVD-2026-39975

GHSA-xrr7-82jr-v58x

Published

2026-08-03T19:27:41.338Z

Modified

2026-08-03T19:35:53.455166902Z

Severity

5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N CVSS Calculator
6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:L/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

nghttp2's nghttpx proxy through 1.69.0 forwards an HTTP/1.1 Upgrade request that also carries a...

Details

nghttp2's nghttpx proxy through 1.69.0 forwards an HTTP/1.1 Upgrade request that also carries a Content-Length header and body onto reusable keep-alive backend connections, re-adding the Upgrade and Connection headers while passing Content-Length verbatim. A backend that resolves the resulting ambiguous message in the attacker's favor enables HTTP request/response smuggling and cross-client response-queue poisoning.

Database specific

{
    "license": "CC-BY-4.0",
    "sources": [
        {
            "imported": "2026-07-31T15:38:11.997Z",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58055",
            "modified": "2026-06-30T17:41:26.433Z",
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-58055",
            "database_specific": {
                "status": "Analyzed"
            },
            "id": "CVE-2026-58055",
            "published": "2026-06-28T02:16:32.677Z"
        },
        {
            "html_url": "https://github.com/advisories/GHSA-xrr7-82jr-v58x",
            "imported": "2026-07-31T15:38:12.313Z",
            "modified": "2026-06-28T03:33:44Z",
            "url": "https://api.github.com/advisories/GHSA-xrr7-82jr-v58x",
            "id": "GHSA-xrr7-82jr-v58x",
            "published": "2026-06-28T03:33:40Z"
        },
        {
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-39975",
            "imported": "2026-07-31T15:38:12.032Z",
            "modified": "2026-06-29T13:51:59Z",
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-39975",
            "id": "EUVD-2026-39975",
            "published": "2026-06-28T01:32:57Z"
        }
    ]
}

References

Affected packages

Julia / nghttp2_jll

Package

Name: nghttp2_jll
Purl: pkg:julia/nghttp2_jll?uuid=8e850ede-7688-5339-a07c-302acd2aaf8d

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.70.0+0

Database specific

source

"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1157.json"