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OSV-2026-889
Vulnerability in libvpx (OSV-2026-889)
Summary
vulnerability in libvpx (OSV-2026-889). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `9794f877a3e380ecd57b735b81fe94ab368f6748` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **OSV-2026-889** has been found in libvpx.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade libvpx to **9794f877a3e380ecd57b735b81fe94ab368f6748** or later.
If unsure, ask your IT team or search "libvpx OSV-2026-889" on the vendor's site.
OSV-2026-889 (libvpx) —
Patched: `9794f877a3e380ecd57b735b81fe94ab368f6748` — 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** (unclassified) exists in libvpx.
📍 Affected scope
libvpx — .
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **9794f877a3e380ecd57b735b81fe94ab368f6748**.
🛡️ 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 'libvpx' .` 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 'libvpx' . | 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 `libvpx` 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 libvpx to 9794f877a3e380ecd57b735b81fe94ab368f6748ステージング環境で 9794f877a3e380ecd57b735b81fe94ab368f6748 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
OSS-Fuzz
libvpx
[{"repo":"https:\/\/chromium.googlesource.com\/webm\/libvpx","type":"GIT","events":[{"introduced":"49dd8ff38aaf06024cfea9d3e74d33592cc443a2"},{"fixed":"9794f877a3e380ecd57b735b81fe94ab368f6748"}]}]