Use After Free in Yandex Browser

CVE-2023-26226

A use after free memory corruption issue exists in Yandex Browser for Desktop prior to version 24.4.0.682

Vulnerability class: Use-After-Free

EPSS: 0.003 (24.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Yandex Browser — versions 0
Yandex Yandex_browser

Weakness classification (CWE)

CWE-416 — Use After Free

References

browser-security@yandex-team.ru (Vendor Advisory)

Frequently asked questions

What is CVE-2023-26226?: CVE-2023-26226 is a critical-severity vulnerability in Yandex Browser, classified under Use After Free. CVSS score: 9.8/10. Published 2025-05-30.
How severe is CVE-2023-26226?: Critical severity. CVSS v3 base score is 9.8 out of 10.