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CVE-2025-71319
high
CVSS 7.5
Vulnerability in image-size (CVE-2025-71319)
Summary
vulnerability in image-size (CVE-2025-71319). Risk of unauthorized operations or information disclosure. Exploitable via ``findBox``. Mitigation: upgrade to `2.0.2` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-71319** has been found in image-size.
Attackers can target a specific entry point like ``findBox`` over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: 7.5/10.
What to do: upgrade image-size to **2.0.2** or later.
If unsure, ask your IT team or search "image-size CVE-2025-71319" on the vendor's site.
CVE-2025-71319 (image-size) — CWE-835 / CVSS v3 7.5
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Attack surface: `findBox` / `firstBytes` / `jxl` / `heif`
Patched: `2.0.2` — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**A vulnerability** (CWE-835) exists in image-size. Attackers reach the vulnerable code path via ``findBox`` without authentication.
📍 Affected scope
image-size — . Attack surface: `findBox` / `firstBytes` / `jxl` / `heif`.
🔥 Severity
Severity: High (CVSS 7.5/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **2.0.2**.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'image-size' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'image-size' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `image-size` を grep し、稼働しているサービス・バージョンを把握する。
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6Apply patch patch
Upgrade image-size to 2.0.2ステージング環境で 2.0.2 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。
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7Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
npm
image-size
[{"type":"SEMVER","events":[{"introduced":"2.0.0"},{"fixed":"2.0.2"}]}]
References
- advisory [email protected]
- advisory https://nvd.nist.gov/vuln/detail/CVE-2025-71319
- exploit [email protected]
- package https://github.com/image-size/image-size
- patch [email protected]
- web https://github.com/image-size/image-size/security/advisories/GHSA-m5qc-5hw7-8vg7
- web https://github.com/image-size/image-size/commit/8994131c7c3ee8da1699e04700c95e0e683a0c68
- web https://github.com/advisories/GHSA-m5qc-5hw7-8vg7
- web [email protected]
- web 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- web 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- web 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- web 0b0ca135-0b70-47e7-9f44-1890c2a1c46c