CVE-2026-78942: google chrome
Vulnerability summary
CVE-2026-78942 is a medium (CVSS 4.3) vulnerability in google chrome. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 20.2% of scored vulnerabilities.
Not severe (CVSS 4.3, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3 · Related 4Timeline
- 25-08-2026PublishedVulnerability first disclosed.
- 17-09-2026Last modifiedVulnerability information updated.
Description
Incorrect reference resolution in Loader in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to bypass web origin policy via crafted network traffic. (Chromium security severity: Medium)
CVSS metrics
3 scores · 3 sources · 1 version- OSV · DebianEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
- NVDNIST4.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
EPSS trend
Probability
0.28%
Chance of exploitation in the next 30 days
Percentile
20%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.28% 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.
Chainguard3 products
- chromium< 152.0.7977.75-r0
- chromium-docker-selenium-compat< 152.0.7977.75-r0
- chromium-lang< 152.0.7977.75-r0
Wolfi3 products
- chromium< 152.0.7977.75-r0
- chromium-docker-selenium-compat< 152.0.7977.75-r0
- chromium-lang< 152.0.7977.75-r0
Debian1 product
- chromium< 152.0.7977.75-1~deb12u1 | < 152.0.7977.75-1~deb13u1 | < 152.0.7977.64-1
Google1 product
- chrome≥ 152.0.7977.65, < 152.0.7977.65 | < 152.0.7977.65
4 vendors · 8 products
References
3 links- chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.htmlRelease NotesVendor Advisory
- issues.chromium.org/issues/502139081Permissions Required