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Medium

ammonia allows stored XSS through unsanitized SVG animate and set attributes

Type: advisorySource: Official CVE List1 source record

ammonia is a Rust library for repairing and securing untrusted HTML. Prior to 3.3.3, 4.0.3, and 4.1.4, applications that allow the SVG animate or set elements can retain an animation whose attributeName targets href and whose value uses the javascript scheme. The sanitized SVG can therefore create a script-bearing link, and a user who clicks the link can execute attacker-controlled script in the application's origin, enabling stored cross-site scripting. This issue is fixed in versions 3.3.3, 4.0.3, and 4.1.4.

Announced Source revision 1
Original source ↗

CVE-2026-102342

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-102342

ammonia

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "rust-ammonia",
    "product": "ammonia",
    "versions": [
      {
        "status": "affected",
        "version": "< 3.3.3"
      },
      {
        "status": "affected",
        "version": ">= 4.0.0, < 4.0.3"
      },
      {
        "status": "affected",
        "version": ">= 4.1.2, < 4.1.4"
      }
    ]
  }
]
Related CVEs
CVE-2026-102342

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#20784 · Revision 1
Added to Heist Feed
Publisher date
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