8.3

CVE-2026-11656: google chrome Use After Free

CVSS: 8.3v3.1HighAnalyzed
AliasesDEBIAN-CVE-2026-11656CGA-96w7-9ffp-889cCGA-c3j4-x6pc-4vwc
Published 08-06-2026Last modified 09-06-2026
Open JSON

Vulnerability summary

CVE-2026-11656 is a high (CVSS 8.3) Use After Free vulnerability in google chrome. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.9% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.3/10
010
High · v3.1 (CVE.org)
EPSS score
0.17%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 4
OPENSUSE-SU-2026:11008-1OPENSUSE-SU-2026:20944-1OPENSUSE-SU-2026:21135-1CGA-2C4R-4F6W-WVF9

Timeline

  1. 08-06-2026
    PublishedVulnerability first disclosed.
  2. 09-06-2026
    Last modifiedVulnerability information updated.

Description

Use after free in ServiceWorker in Google Chrome prior to 149.0.7827.103 allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted Chrome Extension. (Chromium security severity: High)

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

0.00 pp

From 0.17% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.17%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard1 product
  • chromium< 149.0.7827.102-r0
Debian1 product
  • chromium< 149.0.7827.102-1~deb12u1 | < 149.0.7827.102-1~deb13u1 | < 149.0.7827.102-1
Google1 product
  • chrome≥ 149.0.7827.103, < 149.0.7827.103 | < 149.0.7827.103
Wolfi1 product
  • chromium< 149.0.7827.102-r0

4 vendors · 4 products

References

3 links