要点
- CVE-2026-33311 は dicebear (dicebear), @dicebear/core, @dicebear/initials に影響する深刻度「中」 (CVSS 4.7) の脆弱性です。
- 今後30日間に悪用される確率（EPSS）：0.19%（全脆弱性の 8.5% より高い）。
- 対処：5.4.4, 6.1.4, 7.1.4, 8.0.3 以降に更新してください。
| パッケージ | 影響を受けるバージョン | 修正済みバージョン |
|---|
| dicebear | ≥ 5.0.0, < 5.4.4≥ 6.0.0, < 6.1.4≥ 7.0.0, < 7.1.4≥ 8.0.0, < 8.0.3≥ 9.0.0, < 9.4.1
| 5.4.46.1.47.1.48.0.39.4.1
|
| @dicebear/core npm | ≥ 5.0.0, < 5.4.4≥ 6.0.0, < 6.1.4≥ 7.0.0, < 7.1.4≥ 8.0.0, < 8.0.3≥ 9.0.0, < 9.4.1
| 5.4.46.1.47.1.48.0.39.4.1
|
| @dicebear/initials npm | ≥ 5.0.0, < 5.4.4≥ 6.0.0, < 6.1.4≥ 7.0.0, < 7.1.4≥ 8.0.0, < 8.0.3≥ 9.0.0, < 9.4.1
| 5.4.46.1.47.1.48.0.39.4.1
|
概要
Summary
SVG attribute values derived from user-supplied options (backgroundColor, fontFamily, textColor) were not XML-escaped before interpolation into SVG output. This could allow Cross-Site Scripting (XSS) when applications pass untrusted input to createAvatar() and serve the resulting SVG inline or with Content-Type: image/svg+xml.
Affected packages
@dicebear/core — backgroundColor option values interpolated into SVG attributes without escaping (affects solid and gradientLinear background types)@dicebear/initials — fontFamily and textColor option values interpolated into SVG attributes without escaping
Fix
All affected SVG attribute values are now properly escaped using XML entity encoding. Users should upgrade to the listed patched versions.
Mitigating factors
- Applications that validate input against the library's JSON Schema before passing it to
createAvatar() are not affected
- The DiceBear CLI validates input via AJV and was not vulnerable
- Exploitation requires that an application passes untrusted, unvalidated external input directly as option values
NVD の説明
DiceBear is an avatar library for designers and developers. Starting in version 5.0.0 and prior to versions 5.4.4, 6.1.4, 7.1.4, 8.0.3, and 9.4.1, SVG attribute values derived from user-supplied options (`backgroundColor`, `fontFamily`, `textColor`) were not XML-escaped before interpolation into SVG output. This could allow Cross-Site Scripting (XSS) when applications pass untrusted input to `createAvatar()` and serve the resulting SVG inline or with `Content-Type: image/svg+xml`. Starting in versions 5.4.4, 6.1.4, 7.1.4, 8.0.3, and 9.4.1, all affected SVG attribute values are properly escaped using XML entity encoding. Users should upgrade to the listed patched versions. Some mitigating factors limit vulnerability. Applications that validate input against the library's JSON Schema before passing it to `createAvatar()` are not affected. The DiceBear CLI validates input via AJV and was not vulnerable. Exploitation requires that an application passes untrusted, unvalidated external input directly as option values.
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