CVE-2026-85046

Exploitation active confirmée

Ajoutée au catalogue CISA KEV le 04/09/2026, correctif exigé avant le 18/09/2026 pour les agences fédérales américaines.

Action requise : Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Description officielle (NVD)

Type confusion in V8 in Google Chrome prior to 152.0.7977.82 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

Preuves de concept publiques (7)

Dépôts tiers non vérifiés, parfois piégés. Ne les exécutez jamais en production : uniquement dans un environnement de test isolé.

• atiilla/CVE-2026-85046 · ★ 8 · 08/09/2026
  CVE-2026-85046 | Chrome V8 Type Confusion in Inline Array.prototype.sort (Maglev/Turbofan) | CVSS 8.8 | CWE-843 | Chrome < 152.0.7977.82
• adriyansyah-mf/cve-2026-85046-poc · ★ 6 · 05/09/2026
• HORKimhab/CVE-2026-85046 · ★ 1 · 04/09/2026
  CVE-2026-85046
• SneakyNachos/CVE-2026-85046-who-put-the-silverback-guerilla-in-the-wasm · ★ 1 · 08/09/2026
• ubitquity/CVE-2026-85046-Patch-confusion-zero-day-vulnerability-in-Google-Chrome-s-V8-engine · ★ 0 · 04/09/2026
  Conceptual C++ patch and structural analysis for CVE-2026-85046, a critical type confusion zero-day vulnerability in Google Chrome's V8 engine
• Eliot-code/CVE-2026-85046 · ★ 0 · 07/09/2026
• jamezx32/CVE-2026-85046 · ★ 0 · 14/10/2026
  V8 inlined Array.prototype.sort elements-kind confusion - PoC + addrof (N-day research)

Références

• https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01882797386.html , Release Notes, Vendor Advisory
• https://issues.chromium.org/issues/542403045 , Permissions Required
• https://github.com/Serotav/Writeups/blob/77556c57999805fa7815a114da51d91cf24fbea9/v8/When_Sorting_Leads_To_Con... , Exploit, Third Party Advisory
• https://github.com/v8/v8/commit/e0562d87ad9c17042b581582c99237d798572e67 , Patch
• https://news.ycombinator.com/item?id=49570669 , Issue Tracking, Third Party Advisory
• https://serotav.github.io/Writeups/v8/when-sorting-leads-to-confusion/ , Exploit, Third Party Advisory
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-85046 , US Government Resource

En bref

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS : probabilité estimée d'exploitation dans les 30 prochains jours.

Produits concernés

Sources officielles

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