CVE-2026-73490

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Source
https://cve.org/CVERecord?id=CVE-2026-73490
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73490.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-73490
Aliases
Downstream
Related
Published
2026-08-12T20:58:12.219Z
Modified
2026-08-15T11:31:28.643950021Z
Severity
  • 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
Loofah: SVG `href` attribute bypasses local-reference restriction
Details

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Prior to 2.25.2, Loofah's HTML5 sanitizer applies its local-reference restriction only to the xlink:href attribute on SVG use and feImage elements, while browsers also accept the plain href attribute. A crafted sanitized SVG can therefore reference an arbitrary same-origin external document; use may render external SVG content containing scripts or other dangerous content, and feImage may load external images for tracking. Applications that sanitize user-supplied SVG with Loofah's default allowlist are affected. This issue is fixed in version 2.25.2.

Database specific 
{
    "cwe_ids": [
        "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73490.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/flavorjones/loofah

Affected ranges

Type
GIT
Repo
https://github.com/flavorjones/loofah
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
20867b9be689521887364b74822c41ef830523c9
Fixed
2706d7e858426ba856d9711b0e761b2fee7986c4
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.25.2"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v0.*
v0.2.0
v0.2.1
v0.2.2
v0.3.0
v0.3.1
v0.4.0
v0.4.1
v0.4.2
v0.4.3
v0.4.4
v0.4.5
v0.4.6
v0.4.7
v1.*
v1.0.0
v1.0.0.beta.1
v1.1.0
v1.2.0
v1.2.1
v2.*
v2.0.0
v2.0.1
v2.0.2
v2.0.3
v2.1.0
v2.1.0.rc1
v2.1.0.rc2
v2.1.1
v2.10.0
v2.11.0
v2.12.0
v2.13.0
v2.14.0
v2.15.0
v2.16.0
v2.17.0
v2.18.0
v2.19.0
v2.2.0
v2.2.1
v2.2.2
v2.20.0
v2.21.0
v2.21.0.rc1
v2.21.1
v2.21.2
v2.21.3
v2.21.4
v2.22.0
v2.23.0
v2.23.1
v2.24.0
v2.24.1
v2.25.0
v2.25.1
v2.3.0
v2.3.1
v2.4.0
v2.5.0
v2.6.0
v2.7.0
v2.8.0
v2.9.0
v2.9.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73490.json"