PatchSiren cyber security CVE debrief

CVE-2026-113080 Google CVE debrief

CVE-2026-113080 debrief based on CVE Program and NVD records. Google Chrome users should assess exposure to version 156.0.8078.47 and earlier. The CVE record was published on 2026-10-20T21:02:43.965Z and has not been modified since then. This use after free vulnerability in WebAppInstalls allows remote attackers to execute arbitrary code inside the sandbox via a crafted HTML page. Users should verify their Chrome version and update to 156.0.8078.47 or later to mitigate this vulnerability.

Vendor: Google
Product: Chrome
CVSS: Unknown
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-10-20
Original CVE updated: 2026-10-21
Advisory published: 2026-10-20
Advisory updated: 2026-10-21

Who should care

Google Chrome users, particularly those with version 156.0.8078.47 or earlier, should assess exposure and update to the latest version. This includes users who have not updated their Chrome browser recently and may be vulnerable to this use after free vulnerability. Users should verify their Chrome version and update to 156.0.8078.47 or later to mitigate this vulnerability.

Why it matters

CVE-2026-113080 is a use after free vulnerability in Google Chrome that allows remote attackers to execute arbitrary code inside the sandbox. Defenders should prioritize verifying Chrome version and updating to 156.0.8078.47 or later.

Remote attackers may execute arbitrary code inside the sandbox
Defenders must verify Chrome version and update to 156.0.8078.47 or later
Exposure requires verification from official sources

Technical summary

A use after free vulnerability in WebAppInstalls in Google Chrome prior to 156.0.8078.47 allows a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. This vulnerability has a low severity rating according to Chromium. Defenders should prioritize verifying Chrome version and updating to 156.0.8078.47 or later to mitigate this vulnerability. The vulnerability affects Google Chrome users, particularly those with version 156.0.8078.47 or earlier, and they should assess exposure and update to the latest version.

Defensive priority

Defenders should prioritize verifying Chrome version and updating to 156.0.8078.47 or later.

Recommended defensive actions

Verify Chrome version is 156.0.8078.47 or later
Update Chrome to 156.0.8078.47 or later
Monitor for suspicious activity
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 Program record and NVD vulnerability detail page provide official information about CVE-2026-113080. The vulnerability has a low severity rating according to Chromium. There are no known exploits or reports of this vulnerability being used in attacks. The CVE record was published on 2026-10-20T21:02:43.965Z and has not been modified since then.

Sources and references

Verified primary and authoritative sources

CVE-2026-113080 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2026-113080

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2026-113080 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113080

NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

CVE-2026-113080
Unverified legacy reference

URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113080.json

cve_program_cvelist_v5
Source reference
Unverified legacy reference

URL: https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html

Supplemental source
Source reference
Unverified legacy reference

URL: https://issues.chromium.org/issues/533135911

Supplemental source

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.