CVE-2026-113015 Google CVE debrief

Who should care

Defenders responsible for managing Google Chrome installations, particularly in environments where Chrome is widely used, should assess exposure and prioritize patching to mitigate potential risks.

Why it matters

CVE-2026-113015 is a use-after-free vulnerability in Google Chrome's Workers feature that could allow remote code execution within the sandbox. Defenders should prioritize assessing exposure and applying patches to mitigate potential risks.

• Potential for remote code execution within the sandbox
• Need for patching to prevent exploitation
• Importance of verifying Chrome inventory and prioritizing patching
• Potential targeting by attackers

Technical summary

The CVE-2026-113015 vulnerability is a use-after-free issue in Google Chrome's Workers feature. This vulnerability could allow a remote attacker to execute arbitrary code within the sandbox via a crafted HTML page. The issue was classified as having a Low severity by the Chromium security team. The vulnerability affects Google Chrome installations prior to version 156.0.8078.47 and defenders should prioritize assessing exposure and applying patches to mitigate potential risks. It is essential to verify Chrome inventory and apply patches to prevent exploitation.

Defensive priority

Defenders should prioritize assessing exposure and applying patches for this vulnerability, particularly for Chrome users who may be targeted by attackers.

Recommended defensive actions

• Assess exposure to this vulnerability, particularly for Chrome users
• Apply patches to upgrade to version 156.0.8078.47 or later
• Monitor for potential targeting by attackers
• Verify inventory of Chrome installations and prioritize patching
• 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

Evidence notes

The CVE record and source item provide details on the vulnerability, including its classification as a use-after-free issue in Google Chrome's Workers feature. However, the record does not provide explicit information on exploitation or victim impact.

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.