CVE-2026-8569

HIGHNVD 8.38.3—

8.3

Out of bounds write in Codecs in Google Chrome on Mac prior to 148.0.7778.168 allowed a remote attacker to potentially perform a sandbox escape via a crafted video file. (Chromium security severity: Medium)

CVSS v3: 8.3
EG Score: 8.3(high)
EPSS: 25.7%
KEV: Not listed

Published

May 14, 2026

Last Modified

May 21, 2026

Advisory Details (2)

Auto-updated May 14, 2026

No patch confirmed yet.

generic

Chromium

https://issues.chromium.org/issues/490229299

generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.html

Vendor Advisories for CVE-2026-8569(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

CVE-2026-8569
Microsoft Security Response Center (MSRC)
Chromium: CVE-2026-8569 Out of bounds write in Codecs

Frequently asked(5)

What is CVE-2026-8569?

CVE-2026-8569 is a high vulnerability published on May 14, 2026. Out of bounds write in Codecs in Google Chrome on Mac prior to 148.0.7778.168 allowed a remote attacker to potentially perform a sandbox escape via a crafted video file. (Chromium security severity: Medium)

When was CVE-2026-8569 disclosed?

CVE-2026-8569 was first published in the National Vulnerability Database on May 14, 2026, with the most recent update on May 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-8569 actively exploited?

CVE-2026-8569 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 25.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-8569?

CVE-2026-8569 has a CVSS v3 base score of 8.3 (NVD).

How do I remediate CVE-2026-8569?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8569, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2026-8569

📅 Published

🔄 Last Modified

📋 Advisory Details (2)

Chromium

Chrome Releases: Stable Channel Update for Desktop

📣 Vendor Advisories for CVE-2026-8569(1)

❓ Frequently asked(5)