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Google · Memory corruption

Use after free in WebXR in Google Chrome prior to 157.0.8103.38 allowed a remote attacker leveraging social engineering to execute arbitrary code outside the sandbox via a crafted…

CVE-2026-121241

What this means

This is rated critical severity (9.6 out of 10). There is no confirmed exploitation of it yet. Ask IT whether Google Chrome and Google Android are in your estate, and treat that as the priority.

Full vendor description

Use after free in Navigation in Google Chrome on on Android prior to 157.0.8103.38 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

Scoring and exploitation

9.6/ 10
CVSS 3.1 base scoreCritical

Exploitable over the network without any account, but only if a user takes an action, such as opening a file or link. High impact on confidentiality, integrity and availability, and it can reach beyond the vulnerable system.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Exploitability

Longer bar: easier to attack

Attack vectorNetworkAV:N
Attack complexityLowAC:L
Privileges requiredNonePR:N
User interactionRequiredUI:R
ScopeChangedS:C

Impact

Longer bar: more harm

ConfidentialityHighC:H
IntegrityHighI:H
AvailabilityHighA:H
~0.3% 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-416

Affected products ()

  • Google Chrome
  • Google Android
Show the raw CPE strings (2)
  • cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
  • cpe:2.3:o:google:android:-:*:*:*:*:*:*:*

References

2 links from the CVE record, grouped by site; the vendor's advisory comes first.

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