CVE-2026-113207 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome on Android deployments should assess exposure and apply patches to prevent potential exploitation. This includes IT teams managing browser updates and security patches, as well as security teams monitoring for potential exploitation attempts. Additionally, operators and administrators of Google Chrome on Android should be aware of the vulnerability and take necessary precautions.

Why it matters

CVE-2026-113207 is a use-after-free vulnerability in SiteIsolation in Google Chrome on Android prior to 156.0.8078.47. Defenders should assess exposure, apply patches, and monitor for potential exploitation attempts.

• Potential execution of arbitrary code within the sandbox
• Possible bypass of security restrictions
• Required patching of vulnerable Google Chrome on Android versions
• Need for monitoring and detection of exploitation attempts

Technical summary

The vulnerability is a use-after-free issue in SiteIsolation in Google Chrome on Android prior to 156.0.8078.47. This allows remote attackers to potentially execute arbitrary code within the sandbox via crafted HTML pages. The issue arises from a use-after-free vulnerability in the SiteIsolation component of Google Chrome on Android. Defenders should prioritize assessing exposure and applying patches for Google Chrome on Android versions prior to 156.0.8078.47. The vulnerability has a Medium severity according to Chromium security severity.

Defensive priority

Defenders should prioritize assessing exposure and applying patches for Google Chrome on Android versions prior to 156.0.8078.47.

Recommended defensive actions

• Assess exposure of Google Chrome on Android versions prior to 156.0.8078.47
• Apply patches for Google Chrome on Android to version 156.0.8078.47 or later
• Monitor Google Chrome for Android for potential exploitation attempts
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its description as a use-after-free issue in SiteIsolation in Google Chrome on Android prior to 156.0.8078.47. The vulnerability allows remote attackers to potentially execute arbitrary code within the sandbox via crafted HTML pages. The source details indicate that this issue is a Medium severity vulnerability according to Chromium security severity. There are no explicit details on the scope of affected deployments or specific exploitation attempts.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.