HighCVE-2026-126910

    Chrome: Access of Resource Using Incompatible Type ('Type Confusion') (CVE-2026-126910)

    Published Last modified Sources: BSI

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    What is affected, what to do

    Type confusion in V8 in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

    The available sources name no fixed version. Check the vendor guidance in the references below.

    Conflicting version data — version display is hidden until the data is resolved.

    Not sure whether and how you are affected? Ask a question about this vulnerability

    Metrics

    8.8

    XIEM Effective CVSS

    Highest available CVSS rating from NVD and vendor data.

    Source: Vendor (CNA), CVSS v3

    8.8

    CVSS v3

    Severity High on the scale from 0 to 10.

    Source: BSI

    0.3 %

    EPSS score

    Low — model estimates < 1% exploitation likelihood.

    Source: FIRST EPSS, percentile 23.8

    Show all metrics
    Severity
    High
    Priority (0–325)

    The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first?

    Read in glossary
    75.87 Methodology
    Exploit maturity

    An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack.

    Read in glossary
    no public PoC known
    XIEM Effective CVSS

    XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command.

    Read in glossary
    8.8 Methodology
    CVSS v3

    CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions.

    Read in glossary
    8.8
    EPSS score

    The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“.

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    0.3 %
    Low — model estimates < 1% exploitation likelihood.
    EPSS percentile

    The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking.

    Read in glossary
    23.8
    Elevated — this CVE ranks above at least 10% of all CVEs scored today.
    KEV status

    The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching.

    Read in glossary
    —
    Published
    CISA assessment (SSVC)
    Exploitation: none known · not automatable · Technical impact: total
    Source: CISA Vulnrichment, as of 12 November 2026
    CWE

    CWE is a catalogue of typical weakness types in software and hardware — such as flawed input validation, unsafe memory handling or poor authentication. Where a CVE names a concrete vulnerability in a concrete product, a CWE describes the underlying class of defect.

    Read in glossary
    CWE-843

    Detection rules

    No NEOSEC detection rule is available for this vulnerability yet.

    Classification under NIS2 and CRA

    Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

    NIS2

    NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management.

    Read in glossary
    High technical severity: assess and remediate the vulnerability in vulnerability handling under Art. 21(2)(e) NIS2 and document the decision.
    CRA

    The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates.

    Read in glossary
    From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
    ISO/IEC 27001

    ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security.

    Read in glossary
    Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

    Description

    Type confusion in V8 in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

    Source: BSI WID Portal

    Affected products

    The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

    Affected products
    Affected versionsFixed in
    GoogleChrome
    • < 157.0.8103.78
    • < 157.0.8103.78
    • 157.0.8103.78
    • 157.0.8103.78
    googlechrome
    • < 157.0.8103.78
    • 157.0.8103.78

    Vendors and products

    Affected operating systems

    Affected operating systems
    LinuxLinux—
    OtherSonstiges—
    LinuxUNIX—
    WindowsWindows—

    Weakness classes (CWE)

    • CWE-843Access of Resource Using Incompatible Type ('Type Confusion')

      Base

      The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

      Entry at MITRE CWE-843

    References & sources

    Changes to this CVE

    Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).

    1. Record modifiedCISA ADP

      CISA assessment (SSVC): exploitation: none known, automatable: no

      Show 2 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      SSVC assessmentremoved
      {"id":"CVE-2026-126910","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"version":"2.0.3","timestamp":"2026-11-12T16:07:48.645152Z"}
      —
      SSVC assessmentadded
      —
      {"id":"CVE-2026-126910","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"version":"2.0.3","timestamp":"2026-11-12T00:00:00+00:00"}

      Source identifier: 134c704f-9b21-4f2e-91b3-4a467353bcc0

    2. Record modifiedCISA ADP

      CVSS V3.1: AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

      CISA assessment (SSVC): exploitation: none known, automatable: no

      Show 2 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      CVSSadded
      —
      AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
      SSVC assessmentadded
      —
      {"id":"CVE-2026-126910","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"version":"2.0.3","timestamp":"2026-11-12T16:07:48.645152Z"}

      Source identifier: 134c704f-9b21-4f2e-91b3-4a467353bcc0

    3. ReceivedGoogle Chrome

      Weakness type: CWE-843

      Description added or changed

      Show 5 original changes
      Individual changes of this event as published by NVD
      TypeActionBeforeAfter
      Descriptionadded
      —
      Type confusion in V8 in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
      Weakness type (CWE)added
      —
      CWE-843
      Affected versions (publisher)added
      —
      New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/126xxx/CVE-2026-126910.json">CVE-2026-126910</a>
      Referenceadded
      —
      https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop_01744469280.html
      Referenceadded
      —
      https://issues.chromium.org/issues/574059463

      Source identifier: chrome-cve-admin@google.com

    Linked CVEs

    Linked CVEs
    LowCVE-2026-126922Google Chrome: Out-of-bounds Read3.1—
    HighCVE-2026-126921Google Chrome: Use After Free8.8—
    MediumCVE-2026-126920Google Chrome: Exposure of Sensitive Information to an Unauthorized Actor4.3—
    HighCVE-2026-126919Google Chrome: Use After Free8.8—
    HighCVE-2026-126918Google Chrome: Use After Free8.8—
    HighCVE-2026-126917Google Chrome: Improper Restriction of Operations within the Bounds of a Memory Buffer8.8—
    HighCVE-2026-126916Google Chrome: Integer Overflow or Wraparound8.8—
    HighCVE-2026-126915Google Chrome: Use of Uninitialized Variable7.5—
    MediumCVE-2026-126914Google Chrome: Use of Uninitialized Resource4.3—
    LowCVE-2026-126913Google Chrome: Out-of-bounds Read3.4—
    CriticalCVE-2026-126912Google Chrome: Heap-based Buffer Overflow9.6—
    HighCVE-2026-126911Google Chrome: Use After Free8.8—
    HighCVE-2026-126910Google Chrome: Type Confusion8.8—
    CriticalCVE-2026-126909Google Chrome: Use After Free9.6—
    HighCVE-2026-126908Google Chrome: Type Confusion8.8—
    LowCVE-2026-126907Google Chrome: Use of Uninitialized Resource3.1—
    MediumCVE-2026-126906Google Chrome: Time-of-check Time-of-use (TOCTOU) Race Condition5.9—
    HighCVE-2026-126905Google Chrome: Incomplete Cleanup8.8—
    HighCVE-2026-126904Google Chrome: Use After Free7.5—
    HighCVE-2026-126903Google Chrome: Improper Check for Unusual or Exceptional Conditions8.1—
    HighCVE-2026-126902Google Chrome: Use of Incorrectly-Resolved Name or Reference7.5—
    HighCVE-2026-126901Google Chrome: Use After Free8.8—
    HighCVE-2026-126900Google Chrome: Use After Free8.8—
    HighCVE-2026-126899Google Chrome: Use After Free8.8—
    Show 59 more CVEs
    Linked CVEs
    MediumCVE-2026-126898Google Chrome: Use of Uninitialized Resource4.3—
    HighCVE-2026-126897Google Chrome: Type Confusion8.8—
    HighCVE-2026-126896Google Chrome: Missing Authorization8.1—
    HighCVE-2026-126895Google Chrome: Use After Free8.8—
    LowCVE-2026-126894Google Chrome: Out-of-bounds Read3.1—
    HighCVE-2026-126893Google Chrome: Out-of-bounds Write8.8—
    HighCVE-2026-126892Google Chrome: Use After Free8.8—
    MediumCVE-2026-126891Google Chrome: Use After Free4.3—
    HighCVE-2026-126890Google Chrome: Out-of-bounds Read8.8—
    HighCVE-2026-126889Google Chrome: Off-by-one Error8.8—
    HighCVE-2026-126888Google Chrome: Heap-based Buffer Overflow8.8—
    HighCVE-2026-126887Google Chrome: Use After Free8.8—
    HighCVE-2026-126886Google Chrome: Use After Free8.8—
    CriticalCVE-2026-126885Google Chrome: Use After Free9.6—
    MediumCVE-2026-126884Google Chrome: Out-of-bounds Read4.7—
    HighCVE-2026-126883Google Chrome: Use After Free7.5—
    LowCVE-2026-126882Google Chrome: Exposure of Sensitive Information to an Unauthorized Actor3.1—
    HighCVE-2026-126881Google Chrome: Improper Initialization8.8—
    HighCVE-2026-126880Google Chrome: Type Confusion8.8—
    HighCVE-2026-126879Google Chrome: Use After Free8.8—
    MediumCVE-2026-126878Google Chrome: Exposure of Sensitive Information to an Unauthorized Actor4.3—
    HighCVE-2026-126877Google Chrome: Use After Free7.5—
    HighCVE-2026-126876Google Chrome: Integer Overflow or Wraparound8.8—
    HighCVE-2026-126875Google Chrome: Missing Authorization8.1—
    HighCVE-2026-126874Google Chrome: Type Confusion8.8—
    HighCVE-2026-126873Google Chrome: Use After Free8.8—
    CriticalCVE-2026-126872Google Chrome: Incorrect Authorization9.6—
    MediumCVE-2026-126871Google Chrome: Out-of-bounds Read4.7—
    MediumCVE-2026-126870Google Chrome: Use of Uninitialized Resource4.7—
    HighCVE-2026-126869Google Chrome: Use After Free8.8—
    HighCVE-2026-126868Google Chrome: Type Confusion8.8—
    HighCVE-2026-126867Google Chrome: Use After Free8.8—
    HighCVE-2026-126866Google Chrome: Incorrect Authorization8.8—
    HighCVE-2026-126865Google Chrome: Use After Free8.8—
    HighCVE-2026-126864Google Chrome: Use After Free8.8—
    HighCVE-2026-126863Google Chrome: Use After Free8.8—
    HighCVE-2026-126862Google Chrome: Improper Input Validation7.7—
    HighCVE-2026-126861Google Chrome: Use After Free8.8—
    HighCVE-2026-126860Google Chrome: Incorrect Authorization8.8—
    CriticalCVE-2026-126859Google Chrome: Link Following9.6—
    MediumCVE-2026-126858Google Chrome: Use of Uninitialized Resource4.7—
    MediumCVE-2026-126857Google Chrome: Out-of-bounds Read4.3—
    MediumCVE-2026-126856Google Chrome: Incomplete Cleanup4.3—
    MediumCVE-2026-126855Google Chrome: Missing Authorization6.8—
    MediumCVE-2026-126854Google Chrome: Incorrect Authorization4.3—
    LowCVE-2026-126853Google Chrome: Use of Uninitialized Resource3.1—
    HighCVE-2026-126852Google Chrome: Use After Free8.8—
    HighCVE-2026-126851Google Chrome: Use After Free8.8—
    MediumCVE-2026-126850Google Chrome: Incorrect Authorization5.3—
    HighCVE-2026-126849Google Chrome: Type Confusion8.8—
    LowCVE-2026-126848Google Chrome: Use of Uninitialized Resource3.1—
    HighCVE-2026-126847Google Chrome: Type Confusion8.8—
    CriticalCVE-2026-126846Google Chrome: Use After Free9.6—
    LowCVE-2026-126845Google Chrome: Use of Uninitialized Resource3.1—
    LowCVE-2026-126844Google Chrome: Use of Uninitialized Resource3.1—
    HighCVE-2026-126843Google Chrome: Type Confusion8.8—
    CriticalCVE-2026-126842Google Chrome: Use After Free9.6—
    LowCVE-2026-126841Google Chrome: Out-of-bounds Read3.1—
    HighCVE-2026-126840Google Chrome: Out-of-bounds Write8.8—
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