HighCVE-2026-8510

    Chrome: External Control of Assumed-Immutable Web Parameter (CVE-2026-8510)

    Published Sources: BSI

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    What is affected, what to do

    Integer overflow in Skia in Google Chrome on Windows prior to 148.0.7778.168 allowed a remote attacker who had compromised the renderer process to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)

    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

    7.5

    XIEM Effective CVSS

    Highest available CVSS rating from NVD and vendor data.

    Source: NVD, CVSS v3

    7.5

    CVSS v3

    Severity High on the scale from 0 to 10.

    Source: BSI

    10.0 %

    EPSS score

    Moderate — model estimates 1-10% exploitation likelihood.

    Source: FIRST EPSS, percentile 95.7

    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
    68.46 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
    7.5 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
    7.5
    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“.

    Read in glossary
    10.0 %
    Moderate — model estimates 1-10% 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
    95.7
    Critical — this CVE ranks in the top fifth of all CVEs scored today (rank ≥ 80%).
    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 14 May 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-472

    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

    Integer overflow in Skia in Google Chrome on Windows prior to 148.0.7778.168 allowed a remote attacker who had compromised the renderer process to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)

    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
    • < 148.0.7778.168
    • < 148.0.7778.167
    • < 148.0.7778.168
    • 148.0.7778.168
    • 148.0.7778.167
    • 148.0.7778.168
    open-webuiopen-webui
    • < 0.8.9
    • 0.8.9
    Palo Alto NetworksGlobalProtect App
    • 6.0.0 – < 6.0.11
    • 6.0.0 – < 6.0.13
    • ≥ 6.2.0
    • ≥ 6.3.0
    • 6.0.11
    • 6.0.13
    • —
    • —
    googlechrome
    • 148.0.7778.168
    • < 148.0.7778.168
    • —
    • 148.0.7778.168
    openwebuiopen_webui
    • < 0.8.9
    • 0.8.9
    paloaltonetworksglobalprotect
    • 6.0.0 – < 6.0.11
    • 6.0.0 – < 6.0.13
    • 6.2.0 – < 6.2.8
    • 6.2.8
    • 6.3.0 – < 6.3.3
    • 6.3.3
    • 6.0.11
    • 6.0.13
    • 6.2.8
    • —
    • 6.3.3
    • —
    MicrosoftEdge
    • < 148.0.3967.70
    • 148.0.3967.70
    Open SourceWebKitGTK
    • < 2.54.0
    • 2.54.0
    pypiopen-webui
    • 0.1.124
    • 0.1.125
    • 0.2.0
    • 0.2.1
    • 0.2.2
    • 0.2.3
    • 0.2.4
    • 0.2.5
    • 0.3.0
    • 0.3.1
    • 0.3.10
    • 0.3.12
    • 0.3.13
    • 0.3.14
    • 0.3.15
    • 0.3.16
    • 0.3.17
    • 0.3.17.dev2
    • 0.3.17.dev3
    • 0.3.17.dev4
    • 0.3.17.dev5
    • 0.3.18
    • 0.3.19
    • 0.3.2
    • 0.3.20
    • 0.3.21
    • 0.3.22
    • 0.3.23
    • 0.3.24
    • —
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    Vendors and products

    Affected operating systems

    Affected operating systems
    Linuxdebianchromiumbookworm
    Linuxdebianchromiumtrixie
    Linuxdebianwebkit2gtktrixie

    Weakness classes (CWE)

    • CWE-472External Control of Assumed-Immutable Web Parameter

      Base

      The web application does not sufficiently verify inputs that are assumed to be immutable but are actually externally controllable, such as hidden form fields.

      Entry at MITRE CWE-472

    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).

    One NVD translation into another language is hidden.

    Linked CVEs

    Linked CVEs
    HighCVE-2026-8587Google Chrome: Use After Free8.8—
    MediumCVE-2026-8586Google Chrome: Improper Access Control5.5—
    HighCVE-2026-8585Google Chrome: Protection Mechanism Failure7.5—
    MediumCVE-2026-8584Google Chrome: User Interface (UI) Misrepresentation of Critical Information4.2—
    MediumCVE-2026-8583Google Chrome: Protection Mechanism Failure5.3—
    MediumCVE-2026-8582Google Chrome: Improper Control of a Resource Through its Lifetime5.3—
    HighCVE-2026-8581Google Chrome: Use After Free8.8—
    CriticalCVE-2026-8580Google Chrome: Use After Free9.6—
    LowCVE-2026-8579Google Chrome: Improper Input Validation3.1—
    LowCVE-2026-8578Google Chrome: Out-of-bounds Read3.1—
    HighCVE-2026-8577Google Chrome: External Control of Assumed-Immutable Web Parameter8.8—
    MediumCVE-2026-8576Google Chrome: Permissive Cross-domain Security Policy with Untrusted Domains4.3—
    HighCVE-2026-8575Google Chrome: Use After Free8.3—
    HighCVE-2026-8574Google Chrome: Use After Free8.3—
    HighCVE-2026-8573Google Chrome: External Control of Assumed-Immutable Web Parameter8.3—
    LowCVE-2026-8572Google Chrome: Protection Mechanism Failure3.1—
    HighCVE-2026-8571Google Chrome: Protection Mechanism Failure8.3—
    MediumCVE-2026-8570Google Chrome: Type Confusion6.5—
    HighCVE-2026-8569Google Chrome: Out-of-bounds Write8.3—
    LowCVE-2026-8568Google Chrome: security vulnerability3.1—
    MediumCVE-2026-8567Google Chrome: External Control of Assumed-Immutable Web Parameter4.3—
    MediumCVE-2026-8566Google Chrome: Improper Access Control4.3—
    MediumCVE-2026-8565Google Chrome: User Interface (UI) Misrepresentation of Critical Information4.7—
    MediumCVE-2026-8564Google Chrome: User Interface (UI) Misrepresentation of Critical Information4.2—
    Show 57 more CVEs
    Linked CVEs
    MediumCVE-2026-8563Google Chrome: Protection Mechanism Failure4.3—
    MediumCVE-2026-8562Google Chrome: Improper Protection of Physical Side Channels4.3—
    MediumCVE-2026-8561Google Chrome: User Interface (UI) Misrepresentation of Critical Information5.4—
    MediumCVE-2026-8560Google Chrome: Heap-based Buffer Overflow4.3—
    MediumCVE-2026-8559Google Chrome: External Control of Assumed-Immutable Web Parameter4.3—
    HighCVE-2026-8558Google Chrome: Out-of-bounds Write8.8—
    HighCVE-2026-8557Google Chrome: Use After Free7.5—
    LowCVE-2026-8556Google Chrome: Improper Restriction of Operations within the Bounds of a Memory Buffer3.1—
    HighCVE-2026-8555Google Chrome: Use After Free8.8—
    LowCVE-2026-8554Google Chrome: Type Confusion3.1—
    LowCVE-2026-8553Google Chrome: Use After Free3.1—
    MediumCVE-2026-8552Google Chrome: Heap-based Buffer Overflow4.3—
    HighCVE-2026-8551Google Chrome: Use After Free8.8—
    MediumCVE-2026-8550Google Chrome: Use After Free6.5—
    HighCVE-2026-8549Google Chrome: Use After Free8.8—
    HighCVE-2026-8548Google Chrome: Out-of-bounds Write8.3—
    HighCVE-2026-8547Google Chrome: Missing Authorization7.5—
    MediumCVE-2026-8546Google Chrome: Out-of-bounds Read5.3—
    LowCVE-2026-8545Google Chrome: Improper Restriction of Operations within the Bounds of a Memory Buffer3.1—
    HighCVE-2026-8544Google Chrome: Use After Free8.8—
    MediumCVE-2026-8543Google Chrome: Out-of-bounds Read5.3—
    HighCVE-2026-8542Google Chrome: Use After Free8.3—
    MediumCVE-2026-8541Google Chrome: Out-of-bounds Read5.3—
    HighCVE-2026-8540Google Chrome: Type Confusion8.8—
    MediumCVE-2026-8539Google Chrome: Code Injection5.4—
    MediumCVE-2026-8538Google Chrome: Improper Input Validation5.3—
    MediumCVE-2026-8537Google Chrome: Permissive Cross-domain Security Policy with Untrusted Domains4.3—
    LowCVE-2026-8536Google Chrome: Improper Input Validation3.1—
    MediumCVE-2026-8535Google Chrome: Out-of-bounds Read5.3—
    HighCVE-2026-8534Google Chrome: External Control of Assumed-Immutable Web Parameter8.3—
    HighCVE-2026-8533Google Chrome: Use After Free8.3—
    HighCVE-2026-8532Google Chrome: External Control of Assumed-Immutable Web Parameter8.8—
    HighCVE-2026-8531Google Chrome: Heap-based Buffer Overflow8.8—
    HighCVE-2026-8530Google Chrome: Use After Free8.3—
    HighCVE-2026-8529Google Chrome: Heap-based Buffer Overflow8.8—
    MediumCVE-2026-8528Google Chrome: Improper Input Validation4.3—
    HighCVE-2026-8527Google Chrome: Improper Input Validation8.8—
    HighCVE-2026-8526Google Chrome: Out-of-bounds Write8.8—
    HighCVE-2026-8525Google Chrome: Heap-based Buffer Overflow8.3—
    HighCVE-2026-8524Google Chrome: Out-of-bounds Write8.8—
    HighCVE-2026-8523Google Chrome: Use After Free8.3—
    HighCVE-2026-8522Google Chrome: Use After Free8.8—
    HighCVE-2026-8521Google Chrome: Use After Free7.5—
    HighCVE-2026-8520Google Chrome: Race Condition8.3—
    HighCVE-2026-8519Google Chrome: External Control of Assumed-Immutable Web Parameter8.8—
    HighCVE-2026-8518Google Chrome: Use After Free8.8—
    HighCVE-2026-8517Google Chrome: Improper Control of a Resource Through its Lifetime8.8—
    MediumCVE-2026-8516Google Chrome: Improper Input Validation5.3—
    HighCVE-2026-8515Google Chrome: Use After Free8.3—
    HighCVE-2026-8514Google Chrome: Use After Free8.3—
    HighCVE-2026-8513Google Chrome: Use After Free8.3—
    HighCVE-2026-8512Google Chrome: Use After Free8.3—
    CriticalCVE-2026-8511Google Chrome: Use After Free9.6—
    HighCVE-2026-8510Google Chrome: External Control of Assumed-Immutable Web Parameter7.5—
    HighCVE-2026-8509Google Chrome: Heap-based Buffer Overflow8.8—
    MediumCVE-2026-45351Open WebUI: Exposure of System Prompt to Regular User [Non-Admin]6.5—
    HighCVE-2026-0251GlobalProtect App: Local Privilege Escalation Vulnerabilities7.8—
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