CVE-2026-6296: google chrome Heap-based Buffer Overflow
Vulnerability summary
CVE-2026-6296 is a critical (CVSS 9.6) Heap-based Buffer Overflow vulnerability in google chrome. EPSS estimates a 0.56% chance of exploitation in the next 30 days, higher than 46.3% of scored vulnerabilities.
Severe, CVSS 9.6 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 9 · Related 8Timeline
- 15-04-2026PublishedVulnerability first disclosed.
- 26-05-2026Last modifiedVulnerability information updated.
Description
Heap buffer overflow in ANGLE in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)
CVSS metrics
4 scores · 4 sources · 1 version- OSV · DebianEcosystem advisory · calculated9.6CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- NVDNIST9.6CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- OSV · AlpineEcosystem advisory · calculated9.6CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS trend
Probability
0.56%
Chance of exploitation in the next 30 days
Percentile
46%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.56% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Debian3 products
- chromium< 147.0.7727.101-1~deb12u1 | < 147.0.7727.101-1~deb13u1 | < 147.0.7727.101-1
- webkit2gtkAll versions (No fix recorded) | < 2.54.0-1~deb13u1
- wpewebkitAll versions (No fix recorded) | < 2.54.0-1
Alpine1 product
- qt6-qtwebengine< 6.10.3-r1 | < 6.11.0-r4
Chainguard1 product
- chromium< 147.0.7727.101-r0
Google1 product
- chrome≥ 147.0.7727.101, < 147.0.7727.101 | < 147.0.7727.101
Wolfi1 product
- chromium< 147.0.7727.101-r0
5 vendors · 7 products
References
4 links- chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop_15.htmlRelease NotesVendor Advisory
- issues.chromium.org/issues/490170083Permissions Required