# DEBIAN-CVE-2026-87491: chromium security update

DEBIAN-CVE-2026-87491, released September 18, 2026, fixes 1 CVE in chromium. One of them is being exploited (CVE-2026-87491); 1 on CISA KEV. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/fix/linux/debian-cve-2026-87491
- Platform: Linux
- Released: Sep 18, 2026
- Priority: Patch now (Closes CVE-2026-87491, exploited (CISA KEV))
- CVEs: 1, exploited: 1, on CISA KEV: 1
- Vendor advisory: https://security-tracker.debian.org/tracker/CVE-2026-87491

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [chromium](https://patchblox.com/security/data/product/linux/chromium.md) | Debian 12.15 (bookworm) | 153.0.8010.52-1~deb12u1 |
| [chromium](https://patchblox.com/security/data/product/linux/chromium.md) | Debian 13.5 (trixie) | 153.0.8010.47-2~deb13u1 |
| [chromium](https://patchblox.com/security/data/product/linux/chromium.md) | Debian 14 | 153.0.8010.47-1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-87491](https://patchblox.com/security/data/cve/CVE-2026-87491.md) | Patch now | Chromium CVE-2026-87491:  Out of bounds write in V8 | 8.8 | 0.0351 | CISA KEV |

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Data as of 2026-11-09T13:31:49Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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