JLSEC-2026-1383

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Source

https://github.com/JuliaLang/SecurityAdvisories.jl/blob/main/advisories/published/2026/JLSEC-2026-1383.md

Import Source

https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1383.json

JSON Data

https://api.osv.dev/v1/vulns/JLSEC-2026-1383

Upstream

CVE-2026-73259

EUVD-2026-63498

Published

2026-08-24T13:43:17.899Z

Modified

2026-08-24T14:00:03.355072234Z

Severity

5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N CVSS Calculator

Summary

[none]

Details

Mongoose is an embedded web server and network library. Prior to 7.22, a remote attacker can send a crafted percent-encoded request path to a deployment using MG_ENABLE_DIRLIST and persuade a user to visit it. The mg_http_serve_dir() and listdir() path in src/http.c places the decoded request URI into the title and h1 elements without HTML entity encoding. The resulting reflected cross-site scripting executes in the Mongoose origin and can expose session data or perform actions as the victim. This issue is fixed in version 7.22.

Database specific

{
    "sources": [
        {
            "imported": "2026-08-23T06:20:18.327Z",
            "published": "2026-08-20T18:16:47.730Z",
            "database_specific": {
                "status": "Received"
            },
            "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-73259",
            "id": "CVE-2026-73259",
            "html_url": "https://nvd.nist.gov/vuln/detail/CVE-2026-73259",
            "modified": "2026-08-20T20:17:46.580Z"
        },
        {
            "imported": "2026-08-23T06:20:06.544Z",
            "published": "2026-08-20T17:39:16Z",
            "modified": "2026-08-20T19:51:19Z",
            "url": "https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-63498",
            "id": "EUVD-2026-63498",
            "affected": {
                "Cesanta:Mongoose": [
                    "< 7.22"
                ]
            },
            "html_url": "https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-63498"
        }
    ],
    "license": "CC-BY-4.0"
}

References

Affected packages

Julia / Mongoose_jll

Package

Name: Mongoose_jll
Purl: pkg:julia/Mongoose_jll?uuid=0a8a3f5b-4c0e-5906-8e29-5b3fee15539c

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-2026-1383.json"