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PatchSiren cyber security CVE debrief

CVE-2026-113056 Google CVE debrief

A memory corruption vulnerability in PerformanceAPIs in Google Chrome prior to 156.0.8078.47 allows a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. The CVE record was published on 2026-10-20T21:02:38.906Z and has not been modified since then. The NVD entry is currently unclassified. This vulnerability requires immediate attention from defenders responsible for Chrome deployments, particularly those using versions prior to 156.0.8078.47.

Vendor
Google
Product
Chrome
CVSS
Unknown
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-20
Original CVE updated
2026-10-22
Advisory published
2026-10-20
Advisory updated
2026-10-22

Who should care

Defenders responsible for Chrome deployments, particularly those using versions prior to 156.0.8078.47, should assess exposure and potential impact. This includes operators, platform administrators, vulnerability management teams, and security teams who need to verify exposure and implement mitigations. Defenders should also review compensating controls for exposed systems while remediation is scheduled and verified.

Why it matters

The memory corruption vulnerability in PerformanceAPIs in Google Chrome prior to 156.0.8078.47 requires verification of exposure and potential impact, particularly for Chrome deployments.

  • Potential execution of arbitrary code outside the sandbox
  • Possible disruption of Chrome services
  • Required verification of Chrome version and potential updates
  • Potential impact on Chrome-based applications and services

Technical summary

The vulnerability exists in PerformanceAPIs in Google Chrome prior to 156.0.8078.47. A remote attacker can potentially execute arbitrary code outside the sandbox via a crafted HTML page. The vulnerability requires verification of exposure and potential impact, particularly for Chrome deployments. Defenders should prioritize verifying exposure and assessing potential impact, focusing on Chrome versions prior to 156.0.8078.47. The source item and CVE record provide limited information, and defenders should review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance.

Defensive priority

Defenders should prioritize verifying exposure and assessing potential impact, focusing on Chrome versions prior to 156.0.8078.47.

Recommended defensive actions

  • Verify Chrome version and update to 156.0.8078.47 or later if necessary
  • Assess exposure and potential impact on Chrome deployments
  • Monitor 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 source item provide details on the memory corruption vulnerability in PerformanceAPIs in Google Chrome. However, the CVSS score and severity are not provided. The vulnerability exists in PerformanceAPIs in Google Chrome prior to 156.0.8078.47. A remote attacker can potentially execute arbitrary code outside the sandbox via a crafted HTML page. The source item and CVE record provide limited information, and defenders should verify exposure and assess potential impact.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-113056 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-113056

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-113056 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113056

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

Supplemental references

  • CVE-2026-113056

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113056.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/502288792

    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.