CVE-2026-76020
Race condition in V8
CVE-2026-76020: Race condition in V8. Not in the CISA KEV catalog. High advisory severity (CVSS 8.8, Red Hat). 2 advisories from Palo Alto and Red Hat.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
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CVE-2026-76020 key facts
- CISA KEV
- Not listed (catalog checked )
- Highest advisory severity
- High
- CVSS base score
- 8.8 (Red Hat)
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H(Red Hat)
- Weakness
- CWE-368
- VulniPulse record
- Published · Updated
Scores, vectors, weaknesses and fixed releases are quoted from vendor advisories that cover only CVE-2026-76020; bulletin-wide values are not repeated here.
Is CVE-2026-76020 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-76020 is not in the CISA KEV catalog (checked ) and no tracked advisory for it reports exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-76020?
The tracked advisories that cover only this CVE do not list a fixed release yet. That does not mean no fix exists; check each vendor source below.
Vendor advisory comparison
Palo Alto
1 advisory- Advisory severityHigh
High [CVE-2026-76020 +18] PAN-SA-2026-0012 Chromium: Monthly Vulnerability Update (September 2026)
PAN-SA-2026-0012Source published
This bulletin covers 19 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.
Palo Alto Networks incorporated the following Chromium security fixes into our products: CVESummaryCVE-2026-76020 Race condition in V8CVE-2026-76022 Buffer overflow in NetworkCVE-2026-76038 Type confusion in V8CVE-2026-76046 Buffer overflow in ANGLECVE-2026-76047 Type confusion in V8CVE-2026-79016 Observable discrepancy in SVGCVE-2026-79032 Improper input validation in NetworkCVE-2026-79118 Uninitialized resource in ANGLECVE-2026-79195 Use after free in ScriptCVE-2026-79282 Use after free in ANGLECVE-2026-79286 Missing authorization in CustomTabsCVE-2026-79290 Use after free in AuraCVE-2026-79293 Information leak in AnimationCVE-2026-84348 Information leak in MediaCaptureCVE-2026-84350 Use after free in TabStripCVE-2026-84351 Buffer overflow in GPUCVE-2026-84357 Improper input validation…
- Affected products in this advisory
- No product details extracted. Check the source bulletin.
- Source-reported affected versions
- Prisma Browser < 151.26.5.170
- Source-reported fixed versions
- Prisma Browser >= 152.8.4.76
- Mitigation guidance
- Upgrade to a fixed release: Prisma Browser >= 152.8.4.76.
- Workarounds
- No known workarounds exist for this issue.
Red Hat
1 advisory- Advisory severityHigh8.8
High [CVE-2026-76020] Race condition in V8
CVE-2026-76020Source published Source updated
Race condition in V8 in Google Chrome prior to 151.0.7922.173 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High) A race condition flaw was found in the V8 component of the Chromium browser. Upstream bug(s): Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory. Red Hat severity: Important — CVSS 8.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). Weakness: CWE-368.
- Affected products in this advisory
- No product details extracted. Check the source bulletin.
- Source-reported affected versions
- < 151.0.7922.173
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
More Palo Alto advisories
- CVE-2026-111497Oct 26, 2026Portfolio Status: Impact of Brotli Vulnerability on Palo Alto Networks Products
- CVE-2026-109618Oct 21, 2026Impact of Critical Vulnerabilities in PHP (, CVE-2026-109619) on Palo Alto Networks
- CVE-2026-0317Oct 14, 2026PAN-OS: Denial of Service Vulnerability
- CVE-2026-0322Oct 14, 2026PAN-OS: Authenticated Remote Code Execution (RCE) in the Management Interface
- CVE-2026-0319Oct 14, 2026PAN-OS: Improper Input Handling Vulnerability
- CVE-2026-0311Oct 14, 2026Checkov by Prisma Cloud: Server-Side Request Forgery Vulnerability
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