Vulnerability Description
Mesop is a Python-based UI framework that allows users to build web applications. A class pollution vulnerability in Mesop prior to version 0.14.1 allows attackers to overwrite global variables and class attributes in certain Mesop modules during runtime. This vulnerability could directly lead to a denial of service (DoS) attack against the server. Additionally, it could also result in other severe consequences given the application's implementation, such as identity confusion, where an attacker could impersonate an assistant or system role within conversations. This impersonation could potentially enable jailbreak attacks when interacting with large language models (LLMs). Just like the Javascript's prototype pollution, this vulnerability could leave a way for attackers to manipulate the intended data-flow or control-flow of the application at runtime and lead to severe consequences like remote code execution when gadgets are available. Users should upgrade to version 0.14.1 to obtain a fix for the issue.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/mesop-dev/mesop/commit/748e20d4a363d89b841d62213f5b0c6b4bed78
- https://github.com/mesop-dev/mesop/security/advisories/GHSA-f3mf-hm6v-jfhh
FAQ
What is CVE-2025-30358?
CVE-2025-30358 is a vulnerability with a CVSS score of 8.1 (HIGH). Mesop is a Python-based UI framework that allows users to build web applications. A class pollution vulnerability in Mesop prior to version 0.14.1 allows attackers to overwrite global variables and cl...
How severe is CVE-2025-30358?
CVE-2025-30358 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-30358?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.