Vulnerability in exifreader (CVE-2026-8813)
Summary
vulnerability in exifreader (CVE-2026-8813). Risk of unauthorized operations or information disclosure. Exploitable via ``multiLocalizedUnicodeType``. Mitigation: upgrade to `4.39.0` or later.
AI summary snake-internal / snake-material-v2
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 'exifreader' . | 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 `exifreader` 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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5Apply temporary workaround mitigate
If upgrading is not immediately possible, configure a [custom build](https://github.com/mattiasw/ExifReader#configure-a-custom-build) that excludes the `icc` module so that ICC parsing (and therefore this code path) is skipped entirely.パッチが適用されるまでの応急処置として、If upgrading is not immediately possible, configure a [custom build](https://github.com/mattiasw/ExifReader#configure-a-custom-build) that excludes the `icc` module so that ICC parsing (and therefore this code path) is skipped entirely. を実施。回避策の副作用 (機能低下) を確認した上で。
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6Apply patch patch
Upgrade exifreader to 4.39.0ステージング環境で 4.39.0 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
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-8813
- package https://github.com/mattiasw/ExifReader
- web https://gist.github.com/yuki-matsuhashi/3243ea38e5fbf8cfe19b624f04c9f4b4
- web https://github.com/mattiasw/ExifReader/commit/c9d88b67e127b2dcc7b46e328df468257fb2dc30
- web https://security.snyk.io/vuln/SNYK-JS-EXIFREADER-16689335
- web https://github.com/mattiasw/ExifReader/security/advisories/GHSA-h64w-w9pr-82m4
- web https://github.com/advisories/GHSA-h64w-w9pr-82m4