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Praisonai EUVDEUVD-2026-21156

| CVE-2026-40113 HIGH
Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') (CWE-88)
2026-04-09 GitHub_M GHSA-fvxx-ggmx-3cjg
8.4
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
8.4 HIGH
AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

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

CVSS VectorGitHub Advisory

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None

Lifecycle Timeline

5
Re-analysis Queued
Apr 17, 2026 - 19:37 vuln.today
cvss_changed
Patch released
Apr 10, 2026 - 20:30 nvd
Patch available
EUVD ID Assigned
Apr 09, 2026 - 21:45 euvd
EUVD-2026-21156
Analysis Generated
Apr 09, 2026 - 21:45 vuln.today
CVE Published
Apr 09, 2026 - 21:17 nvd
HIGH 8.4

DescriptionGitHub Advisory

PraisonAI is a multi-agent teams system. Prior to 4.5.128, deploy.py constructs a single comma-delimited string for the gcloud run deploy --set-env-vars argument by directly interpolating openai_model, openai_key, and openai_base without validating that these values do not contain commas. gcloud uses a comma as the key-value pair separator for --set-env-vars. A comma in any of the three values causes gcloud to parse the trailing text as additional KEY=VALUE definitions, injecting arbitrary environment variables into the deployed Cloud Run service. This vulnerability is fixed in 4.5.128.

AnalysisAI

Environment variable injection in PraisonAI deploy.py (versions prior to 4.5.128) allows authenticated local attackers to inject arbitrary environment variables into Google Cloud Run services during deployment. The vulnerability stems from improper validation of comma-separated gcloud CLI arguments, enabling attackers to manipulate openai_model, openai_key, or openai_base parameters with embedded commas, causing gcloud to parse injected content as additional KEY=VALUE pairs. This grants high-level access to confidential service configuration and permits unauthorized modifications. No public exploit identified at time of analysis.

Technical ContextAI

Root cause is CWE-88 argument injection during gcloud run deploy command construction. The deploy.py script concatenates user-controlled openai_model, openai_key, and openai_base values into comma-delimited --set-env-vars string without input sanitization. Comma character acts as delimiter boundary, causing gcloud parser to interpret trailing text fragments as legitimate environment variable definitions in the Cloud Run deployment manifest.

RemediationAI

Vendor-released patch: upgrade to PraisonAI version 4.5.128 or later, which implements input validation for comma characters in gcloud deployment parameters. Until patched, restrict access to deploy.py execution to trusted administrators only, and implement pre-deployment validation to reject configuration values containing commas in openai_model, openai_key, or openai_base fields. Review existing Cloud Run service environment variables for unauthorized entries. Consult official security advisory for complete fix details: https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-fvxx-ggmx-3cjg

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CVE-2026-61447 CRITICAL POC
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Root-level command execution and arbitrary file write in PraisonAI's AICoder component (all versions before 4.6.78) let

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EUVD-2026-21156 vulnerability details – vuln.today

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