What is CVE-2026-34824?

CVE-2026-34824 is a high-severity vulnerability in Mesop-dev Mesop, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2026-04-03.

How severe is CVE-2026-34824?

High severity. CVSS v3 base score is 7.5 out of 10.

Out-of-bounds Read in Mesop-dev Mesop

CVE-2026-34824

Mesop is a Python-based UI framework that allows users to build web applications. From version 1.2.3 to before version 1.2.5, an uncontrolled resource consumption vulnerability exists in the WebSocket implementation of the Mesop framework…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (12.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Mesop-dev Mesop — versions >= 1.2.3, < 1.2.5

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

https://github.com/mesop-dev/mesop/security/advisories/GHSA-3jr7-6hqp-x679 (x_refsource_CONFIRM)
https://github.com/mesop-dev/mesop/commit/760a2079b5c609038c826d24dfbcf9b0be98d987 (x_refsource_MISC)
https://github.com/mesop-dev/mesop/releases/tag/v1.2.5 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-34824?: CVE-2026-34824 is a high-severity vulnerability in Mesop-dev Mesop, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2026-04-03.
How severe is CVE-2026-34824?: High severity. CVSS v3 base score is 7.5 out of 10.