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CVE-2026-33414 high CVSS 7.8

OS Command Injection in github.com/containers/podman (CVE-2026-33414)

Summary

OS command injection in github.com/containers/podman (CVE-2026-33414). Successful exploitation can lead to full system takeover. Exploitable via fmt.Sprintf. Mitigation: upgrade to 5.8.2 or later.

Original description

The description as published by the source.

Podman is a tool for managing OCI containers and pods. Versions 4.8.0 through 5.8.1 contain a command injection vulnerability in the HyperV machine backend in pkg/machine/hyperv/stubber.go, where the VM image path is inserted into a PowerShell double-quoted string without sanitization, allowing $() subexpression injection. Because PowerShell evaluates subexpressions inside double-quoted strings before executing the outer command, an attacker who can control the VM image path through a crafted machine name or image directory can execute arbitrary PowerShell commands with the privileges of the Podman process. On typical Windows installations this means SYSTEM-level code execution, and only Windows is affected as the code is exclusive to the HyperV backend. This issue has been patched in version 5.8.2.

Source: NIST National Vulnerability Database 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-2026-33414 has been found in github.com/containers/podman.
Attackers can target a specific entry point like fmt.Sprintf over the network to misuse the product.
Successful exploitation can lead to full system takeover. CVSS score: 7.8/10.
What to do: upgrade github.com/containers/podman to 5.8.2 or later.
If unsure, ask your IT team or search "github.com/containers/podman CVE-2026-33414" on the vendor's site.

CVE-2026-33414 (github.com/containers/podman) — CWE-78 / CVSS v3 7.8
Attack vector: local / no user interaction
Attack surface: fmt.Sprintf
Patched: 5.8.2 — 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

OS command injection (CWE-78) exists in github.com/containers/podman. Attackers reach the vulnerable code path via fmt.Sprintf.

📍 Affected scope

Check the vendor advisory for the affected versions of github.com/containers/podman. Attack surface: fmt.Sprintf.

🔥 Severity

Severity: High (CVSS 7.8/10). Successful exploitation can lead to full system takeover.

🔧 How to fix

Update to 5.8.2.

🛡️ 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 'github.com/containers/podman' . 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 'github.com/containers/podman' . | 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 github.com/containers/podman 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
    Apply patch patch 
    Upgrade github.com/containers/podman to 5.8.2

    ステージング環境で 5.8.2 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を含めること。

  3. 3
    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。

Affected packages

Go github.com/containers/podman
[{"type":"SEMVER","events":[{"introduced":"0"}]}]
Go github.com/containers/podman/v2
[{"type":"SEMVER","events":[{"introduced":"0"}]}]
Go github.com/containers/podman/v3
[{"type":"SEMVER","events":[{"introduced":"0"}]}]
Go github.com/containers/podman/v4
[{"type":"SEMVER","events":[{"introduced":"4.8.0"},{"last_affected":"4.9.5"}]}]
Go github.com/containers/podman/v5
[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"5.8.2"}]}]

Fix status by distribution

Fixed packages published by each distribution for this CVE

References

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