CVE-2026-7338: google chrome Use After Free
Vulnerability summary
CVE-2026-7338 is a high (CVSS 7.5) Use After Free vulnerability in google chrome. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 4.4% of scored vulnerabilities.
Not severe (CVSS 7.5, adjacent network); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2 · Related 3Timeline
- 28-04-2026PublishedVulnerability first disclosed.
- 30-04-2026Last modifiedVulnerability information updated.
Description
Use after free in Cast in Google Chrome prior to 147.0.7727.138 allowed an attacker on the local network segment to potentially exploit heap corruption via malicious network traffic. (Chromium security severity: High)
CVSS metrics
3 scores · 3 sources · 1 version- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.5HighCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.15%
Chance of exploitation in the next 30 days
Percentile
4%
Versus all other CVEs
30-day change
Decrease -0.01 pp
From 0.17% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: adjacent network, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Chainguard1 product
- chromium< 148.0.7778.96-r0
Debian1 product
- chromium< 147.0.7727.137-1~deb12u1 | < 147.0.7727.137-1~deb13u1 | < 147.0.7727.137-1
Google1 product
- chrome≥ 147.0.7727.138, < 147.0.7727.138 | < 147.0.7727.138
Wolfi1 product
- chromium< 148.0.7778.96-r0
4 vendors · 4 products
References
3 links- issues.chromium.org/issues/502449857Permissions Required
