Chrome Extended Stable 156.0.8078.100 Fixes 72 Vulnerabilities

P1 — VALIDATE AND UPDATECritical (highest vendor rating; 4 Critical and 68 High fixes) · Not provided by the authorityEXPLOITATION: NOT STATED

Quick Answer

Deploy 156.0.8078.100 to Windows and macOS Extended Stable clients, relaunch and confirm the running version. Verify channel policy and business compatibility while tracking staged rollout exceptions.

Confirm Scope And Apply The Supported Remediation

What to do now: Record browser channel, operating system, installed version, update policy, extensions and responsible device owner. Confirm Extended Stable selection and Windows or macOS. This advisory does not provide an Extended Stable target for Linux, Android or ChromeOS. Apply the official 156.0.8078.100 package through the supported enterprise update channel and enforce the approved relaunch schedule. Confirm both channel and running version; test enterprise login, important applications, policy enforcement and required extensions.

Open the authoritative advisory

Last verified: 2026-11-12 UTC. Recheck the authoritative advisory and supported distribution channel before changing production.

Scope And Authority

Product scopeGoogle Chrome Extended Stable for Windows and macOS
AdvisoryChrome-Extended-Stable-156.0.8078.100
CVEsCVE-2026-126840, CVE-2026-126841, CVE-2026-126842, CVE-2026-126843, CVE-2026-126844, CVE-2026-126847, CVE-2026-126848, CVE-2026-126849, CVE-2026-126851, CVE-2026-126852, CVE-2026-126853, CVE-2026-126854, CVE-2026-126856, CVE-2026-126857, CVE-2026-126859, CVE-2026-126860, CVE-2026-126861, CVE-2026-126863, CVE-2026-126864, CVE-2026-126865, CVE-2026-126866, CVE-2026-126868, CVE-2026-126869, CVE-2026-126870, CVE-2026-126871, CVE-2026-126872, CVE-2026-126873, CVE-2026-126875, CVE-2026-126876, CVE-2026-126877, CVE-2026-126878, CVE-2026-126879, CVE-2026-126880, CVE-2026-126881, CVE-2026-126883, CVE-2026-126884, CVE-2026-126885, CVE-2026-126886, CVE-2026-126887, CVE-2026-126888, CVE-2026-126889, CVE-2026-126890, CVE-2026-126891, CVE-2026-126892, CVE-2026-126893, CVE-2026-126894, CVE-2026-126895, CVE-2026-126896, CVE-2026-126897, CVE-2026-126898, CVE-2026-126899, CVE-2026-126900, CVE-2026-126901, CVE-2026-126902, CVE-2026-126904, CVE-2026-126905, CVE-2026-126906, CVE-2026-126907, CVE-2026-126908, CVE-2026-126909, CVE-2026-126910, CVE-2026-126911, CVE-2026-126912, CVE-2026-126913, CVE-2026-126914, CVE-2026-126916, CVE-2026-126917, CVE-2026-126918, CVE-2026-126919, CVE-2026-126920, CVE-2026-126921, CVE-2026-126922
Authoritative release dateNovember 11, 2026 at 20:02:29 UTC, from the official Chrome feed.
Authority revision dateNovember 11, 2026 at 22:41:56 UTC, from the official Chrome feed.
Affected versionsWindows and macOS Extended Stable deployments pending this update; the announcement does not specify per-CVE introduction versions.
Fixed versionChrome Extended Stable 156.0.8078.100 for Windows and macOS
CVSS base scoreNot provided by the authority
CVSS severityCritical (highest vendor rating; 4 Critical and 68 High fixes)
Exploitation statusGoogle does not state exploitation of these issues in this update post.; no exploitation claim is inferred.

What Changed

Google updates Extended Stable with 72 listed security fixes, including four rated Critical. Its patch set and version differ from the regular Stable release.

What To Validate Now

  1. Inventory. Record browser channel, operating system, installed version, update policy, extensions and responsible device owner.
  2. Establish applicability. Confirm Extended Stable selection and Windows or macOS. This advisory does not provide an Extended Stable target for Linux, Android or ChromeOS.
  3. Remediate. Apply the official 156.0.8078.100 package through the supported enterprise update channel and enforce the approved relaunch schedule.
  4. Validate. Confirm both channel and running version; test enterprise login, important applications, policy enforcement and required extensions.
  5. Retain evidence. Preserve asset and owner identifiers, the applicability decision, before-and-after versions, change approval, installation output, validation results, and any exception or rollback record.

Operational Cautions

Retain rollout and exception evidence while Google stages availability. Do not switch release channels or treat a regular Stable package as the same maintenance action without reviewing support policy.

Evidence To Retain

  • Exact product, release stream, package or application version, enabled feature, environment, and accountable owner.
  • UTC timestamps, authority revision, approved change record, installer or package-manager output, and resulting version.
  • Relevant logs and monitoring evidence, test results, exceptions, compensating controls, and rollback decisions.

Related TechGeeks Resources

Authoritative References

Correction policy: If the authority changes affected versions, fixed versions, severity, exploitation information, mitigations, or required action, TechGeeks will update this notice and its verification date.