CVE-2026-40088 | MervinPraison PraisonAI up to 4.5.120 execute_command os command injection

VDB-356682 · CVE-2026-40088 · GCVE-0-2026-40088 MERVINPRAISON PRAISONAI UP TO 4.5.120 EXECUTE_COMMAND OS COMMAND INJECTION HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 7.8 $0-$5k 1.26 Summaryinfo A vulnerability was found in MervinPraison PraisonAI up to 4.5.120 and classified as critical. The impacted element is the function execute_command. The manipulation results in os command injection. This vulnerability is reported as CVE-2026-40088. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component. Detailsinfo A vulnerability, which was classified as critical, was found in MervinPraison PraisonAI up to 4.5.120. Affected is the function execute_command. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes: PraisonAI is a multi-agent teams system. Prior to 4.5.121, the execute_command function and workflow shell execution are exposed to user-controlled input via agent workflows, YAML definitions, and LLM-generated tool calls, allowing attackers to inject arbitrary shell commands through shell metacharacters. This vulnerability is fixed in 4.5.121. The advisory is available at github.com. This vulnerability is traded as CVE-2026-40088 since 04/09/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1202 by the MITRE ATT&CK project. Upgrading to version 4.5.121 eliminates this vulnerability. Productinfo Vendor MervinPraison Name PraisonAI Version 4.5.120 Website Product: https://github.com/MervinPraison/PraisonAI/ CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 7.9 VulDB Meta Temp Score: 7.8 VulDB Base Score: 6.3 VulDB Temp Score: 6.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 9.6 CNA Vector (GitHub_M): 🔒 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: No Local: No Remote: Yes 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: PraisonAI 4.5.121 Timelineinfo 04/09/2026 Advisory disclosed 04/09/2026 +0 days CVE reserved 04/09/2026 +0 days VulDB entry created 04/09/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: github.com Status: Confirmed CVE: CVE-2026-40088 (🔒) GCVE (CVE): GCVE-0-2026-40088 GCVE (VulDB): GCVE-100-356682 Entryinfo Created: 04/09/2026 22:13 Changes: 04/09/2026 22:13 (64) Complete: 🔍 Cache ID: 99:531:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸