Vulnerability · Published Sep 9, 2026 · Assigned by Chrome
CVE-2026-87586
Medium 4.3
In plain English
A medium-severity out-of-bounds read in Chrome from Google. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.2%top 83.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Out of bounds read in ANGLE in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | webkit2gtk3 | 2.54.1-1.el8_10 | ALSA-2026:84584 |
| AlmaLinux:9 | webkit2gtk3 | 2.54.1-1.el9_8 | ALSA-2026:84583 |
| AlmaLinux:8 | webkit2gtk3-devel | 2.54.1-1.el8_10 | ALSA-2026:84584 |
| AlmaLinux:9 | webkit2gtk3-devel | 2.54.1-1.el9_8 | ALSA-2026:84583 |
| AlmaLinux:8 | webkit2gtk3-jsc | 2.54.1-1.el8_10 | ALSA-2026:84584 |
| AlmaLinux:9 | webkit2gtk3-jsc | 2.54.1-1.el9_8 | ALSA-2026:84583 |
| AlmaLinux:8 | webkit2gtk3-jsc-devel | 2.54.1-1.el8_10 | ALSA-2026:84584 |
| AlmaLinux:9 | webkit2gtk3-jsc-devel | 2.54.1-1.el9_8 | ALSA-2026:84583 |
| Debian:12 | chromium | 153.0.8010.52-1~deb12u1 | DEBIAN-CVE-2026-87586 |
| Debian:13 | chromium | 153.0.8010.47-2~deb13u1 | DEBIAN-CVE-2026-87586 |
| Debian:14 | chromium | 153.0.8010.47-1 | DEBIAN-CVE-2026-87586 |
| Rocky Linux:8 | webkit2gtk3 | 0:2.54.1-1.el8_10 | RLSA-2026:84584 |
| Rocky Linux:9 | webkit2gtk3 | 0:2.54.1-1.el9_8 | RLSA-2026:84583 |
Affected products (as reported)
Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N