Type Vulnerability
A vulnerability in Google Chrome prior to version 156.0.8078.79 allowed a remote attacker to access cross-origin data through a crafted HTML page.
Information loss in CacheStorage in Google Chrome prior to 156.0.8078.79 allowed a remote attacker to obtain cross-origin data via a crafted HTML page
CVE-2026-76027
What this means
This is rated medium severity (4.3 out of 10). There is no confirmed exploitation of it yet. Ask IT whether Google Chrome is in your estate.
Full vendor description
Information loss in CacheStorage in Google Chrome prior to 156.0.8078.79 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: High)
Scoring and exploitation
4.3/ 10
CVSS 3.1 base scoreMedium
Exploitable over the network without any account, but only if a user takes an action, such as opening a file or link. Low impact on confidentiality.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Exploitability
Longer bar: easier to attack
Attack vectorNetworkAV:N
Attack complexityLowAC:L
Privileges requiredNonePR:N
User interactionRequiredUI:R
ScopeUnchangedS:U
Impact
Longer bar: more harm
ConfidentialityLowC:L
IntegrityNoneI:N
AvailabilityNoneA:N
- ~0.2% estimated chance of attack in 30 daysModel estimate (): a probability signal, not confirmed exploitation
- Exploited in the wild
- Not confirmed in the
- Not reported
Weaknesses
CWE-221
Affected products ()
- Google Chrome
Show the raw CPE strings (1)
- cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
References
2 links from the CVE record, grouped by site; the vendor's advisory comes first.
chromereleases.googleblog.com1 linkVendor advisory
- stable-channel-update-for-desktop_02107719452.html (opens in a new tab)Release Notes · Vendor Advisory
issues.chromium.org1 link
- 568894475 (opens in a new tab)Permissions Required
Related feed events
- Type Vulnerability
Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability.