GHSA-v3r3-4qgc-vw66 · 深刻度: high · エコシステム: npm — Uncontrolled memory allocation via crafted SVG dimensions in @dicebear/converter
DiceBear is an avatar library for designers and developers. Prior to version 9.4.0, the `ensureSize()` function in `@dicebear/converter` read the `width` and `height` attributes from the input SVG to determine the output canvas size for rasterization (PNG, JPEG, WebP, AVIF). An attacker who can supply a crafted SVG with extremely large dimensions (e.g. `width="999999999"`) could force the server to allocate excessive memory, leading to denial of service. This primarily affects server-side applications that pass untrusted or user-supplied SVGs to the converter's `toPng()`, `toJpeg()`, `toWebp()`, or `toAvif()` functions. Applications that only convert self-generated DiceBear avatars are not practically exploitable, but are still recommended to upgrade. This is fixed in version 9.4.0. The `ensureSize()` function no longer reads SVG attributes to determine output size. Instead, a new `size` option (default: 512, max: 2048) controls the output dimensions. Invalid values (NaN, negative, zero, Infinity) fall back to the default. If upgrading is not immediately possible, validate and sanitize the `width` and `height` attributes of any untrusted SVG input before passing it to the converter.
総合評価: CVE-2026-29112 は低リスク(39.5/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.35%、26 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.06% | 0.35% | +0.29% |
| 2 | 2026-03-24 | 0.04% | 0.06% | +0.02% |
| 3 | 2026-03-18 | — | 0.04% | — |
EPSS の全履歴 (全 3 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
GHSA-v3r3-4qgc-vw66 · 深刻度: high · エコシステム: npm — Uncontrolled memory allocation via crafted SVG dimensions in @dicebear/converter
| URL | タグ |
|---|---|
| https://github.com/dicebear/dicebear/commit/42a59eac46a3c68598859e608ec45e578b27614a | Patch |
| https://github.com/dicebear/dicebear/releases/tag/v9.4.0 | Product Release Notes |
| https://github.com/dicebear/dicebear/security/advisories/GHSA-v3r3-4qgc-vw66 | Mitigation Vendor Advisory |