Question 1

What is CVE-2026-121257 — CVE-2026-121257?

Accepted Answer

Use after free in TabStrip in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted Chrome extension. (Chromium security severity: Medium)

Question 2

What is the authoritative source for CVE-2026-121257?

Accepted Answer

CVE-2026-121257 (CVE-2026-121257) is catalogued in NVD + CISA KEV + FIRST EPSS and curated for EU compliance use cases by SQUR.

CVE-2026-121257CVE-2026-121257

Description

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