Categories
CVE-2026-105251 medium CVSS 6.3

Buffer Overflow in vgmstream (CVE-2026-105251)

Summary

Vulnerability in vgmstream (CVE-2026-105251). Risk of unauthorized operations or information disclosure.

Original description

The description as published by the source.

A vulnerability was detected in vgmstream up to r2117. Affected by this vulnerability is the function ps_find_padding of the file src/coding/psx_decoder.c of the component VAG File Handler. Performing a manipulation results in out-of-bounds read. The attack is possible to be carried out remotely. The patch is named 4b8316652a30d40f99ad43310bed273fd1f8a7a3. It is suggested to install a patch to address this issue.

Source: GitHub Security Advisories (Global) NVD GitHub Advisory

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2026-105251 has been found in vgmstream.
Risk of unauthorized operations or information disclosure. CVSS score: 6.3/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "vgmstream CVE-2026-105251" on the vendor's site.

CVE-2026-105251 (vgmstream) — CWE-119 / CVSS v3 6.3
Attack vector: remote (network-reachable) / unauthenticated
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-119) exists in vgmstream.

📍 Affected scope

Check the vendor advisory for the affected versions of vgmstream.

🔥 Severity

Severity: Medium (CVSS 6.3/10). Risk of unauthorized operations or information disclosure.

🔧 How to fix

Update to the patched release per vendor advisory.

🛡️ 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 'vgmstream' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify
    grep -r 'vgmstream' . | 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 vgmstream を grep し、稼働しているサービス・バージョンを把握する。

  2. 2
    Post-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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

References

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