CVE-2026-8539

Chromium: CVE-2026-8539 Script injection in SanitizerAPI

CVE-2026-8539 is fixed in chromium on 1 platform, first by DEBIAN-CVE-2026-8539, released May 27, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

5.4

medium

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0016

5th percentile

<p>This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see <a href="https://chromereleases.googleblog.com/2025">Google Chrome Releases</a> for more information</p>

Where it's fixed

Product	Fixed in	Fix	Released
Linux
chromium · Debian 12.15 (bookworm)	148.0.7778.167-1~deb12u1	DEBIAN-CVE-2026-8539	May 27, 2026
chromium · Debian 13.5 (trixie)	148.0.7778.167-1~deb13u1	DEBIAN-CVE-2026-8539	May 27, 2026
chromium · Debian 14	148.0.7778.167-1	DEBIAN-CVE-2026-8539	May 27, 2026
chromium · opensuse-leap 16.0	148.0.7778.215-bp160.1.1	OPENSUSE-SU-2026:20849-1	Aug 31, 2026

Details

Published
May 14, 2026
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-8539

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