CVE-2026-33414 | containers podman up to 5.8.1 VM Image Parser stubber.go os command injection (GHSA-hc8w-h2mf-hp59)

VDB-357649 · CVE-2026-33414 · GHSA-HC8W-H2MF-HP59 CONTAINERS PODMAN UP TO 5.8.1 VM IMAGE PARSER STUBBER.GO OS COMMAND INJECTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.4 $0-$5k 1.13+ Summaryinfo A vulnerability was found in containers podman up to 5.8.1. It has been classified as critical. The affected element is an unknown function of the file pkg/machine/hyperv/stubber.go of the component VM Image Parser. This manipulation causes os command injection. The identification of this vulnerability is CVE-2026-33414. The attack can only be executed locally. There is no exploit available. Upgrading the affected component is recommended. Detailsinfo A vulnerability was found in containers podman up to 5.8.1. It has been declared as critical. Affected by this vulnerability is an unknown code block of the file pkg/machine/hyperv/stubber.go of the component VM Image Parser. The manipulation with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is: 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. The advisory is shared at github.com. This vulnerability is known as CVE-2026-33414 since 03/19/2026. The exploitation appears to be easy. An attack has to be approached locally. Additional levels of successful authentication are needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1202 for this issue. Upgrading to version 5.8.2 eliminates this vulnerability. Applying the patch 571c842bd357ee626019ea97d030fb772fc654ed is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version. Productinfo Type Virtualization Software Vendor containers Name podman Version 5.8.0 5.8.1 License open-source Website Product: https://github.com/containers/podman/ CPE 2.3info 🔒 🔒 CPE 2.2info 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 6.7 VulDB Meta Temp Score: 6.4 VulDB Base Score: 6.7 VulDB Temp Score: 6.4 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Os command injection CWE: CWE-78 / CWE-77 / CWE-74 CAPEC: 🔒 ATT&CK: 🔒 Physical: Partially Local: Yes Remote: No Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: podman 5.8.2 Patch: 571c842bd357ee626019ea97d030fb772fc654ed Timelineinfo 03/19/2026 CVE reserved 04/15/2026 +26 days Advisory disclosed 04/15/2026 +0 days VulDB entry created 04/15/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-hc8w-h2mf-hp59 Status: Confirmed CVE: CVE-2026-33414 (🔒) GCVE (CVE): GCVE-0-2026-33414 GCVE (VulDB): GCVE-100-357649 Entryinfo Created: 04/15/2026 07:16 Changes: 04/15/2026 07:16 (73) Complete: 🔍 Cache ID: 99:EA4:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸