What is the CVSS score of CVE-2026-29058?

CVE-2026-29058 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Avideo Encoder are affected by CVE-2026-29058?

AVideo installations prior to version 7.0 are vulnerable to unauthenticated remote code execution with critical severity (CVSS 9.8), allowing attackers to take complete control of affected servers…. A patch is available.

Is there a public PoC exploit available for CVE-2026-29058?

Yes, a public proof-of-concept exploit is available for CVE-2026-29058. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-29058?

Within 24 hours: Identify all AVideo deployments and their versions; immediately isolate affected instances from production networks if pre-7.0; enable emergency WAF rules to block base64Url parameter exploitation. Within 7 days: Deploy network segmentation to restrict AVideo server access; implement aggressive input validation and request filtering; conduct forensic analysis for signs of compromise. Within 30 days: Upgrade to AVideo 7.0 or later when available; perform security assessment of compromised systems; review and rotate all credentials and API keys on affected infrastructure.

Avideo Encoder CVE-2026-29058

CRITICAL

OS Command Injection (CWE-78)

2026-03-06 security-advisories@github.com

GHSA-9j26-99jh-v26q

Command Injection Avideo Encoder

9.8

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 12, 2026 - 22:06 vuln.today

CVE Published

Mar 06, 2026 - 07:16 nvd

CRITICAL 9.8

DescriptionGitHub Advisory

AVideo is a video-sharing Platform software. Prior to version 7.0, an unauthenticated attacker can execute arbitrary OS commands on the server by injecting shell command substitution into the base64Url GET parameter. This can lead to full server compromise, data exfiltration (e.g., configuration secrets, internal keys, credentials), and service disruption. This issue has been patched in version 7.0.

AnalysisAI

Unauthenticated OS command injection in AVideo before 7.0.

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Send HTTP GET request with malicious base64Url parameter

Exploit

Inject shell command substitution syntax

Execution

Execute arbitrary OS commands as server process

Impact

Achieve full system compromise

Access

Send HTTP GET request with malicious base64Url parameter

Exploit

Inject shell command substitution syntax

Execution

Execute arbitrary OS commands as server process

Impact

Achieve full system compromise

Vulnerability AssessmentAI

Exploitation	AVideo versions prior to 7.0 with unauthenticated access to the application accepting GET requests with base64Url parameter. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	CVSS 9.8. Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	Inject OS commands.
Remediation	Update. Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Identify all AVideo deployments and their versions; immediately isolate affected instances from production networks if pre-7.0; enable emergency WAF rules to block base64Url parameter exploitation. …

Threat intelligence, references, and detailed analysis are available after sign-in.

CVE-2026-29058 vulnerability details – vuln.today

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Avideo Encoder CVE-2026-29058

Severity by source

CVSS VectorGitHub Advisory

Lifecycle Timeline

DescriptionGitHub Advisory

AnalysisAI

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Attack ChainAIDerived

Vulnerability AssessmentAI

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External POC / Exploit Code