CVE & CISA-KEV Catalog

CVE-2024-5840

MEDIUM

6.5

CVSS v3

Description

Policy bypass in CORS in Google Chrome prior to 126.0.6478.54 allowed a remote attacker to bypass discretionary access control via a crafted HTML page. (Chromium security severity: Medium)

CWE-284Improper Access Control

How to fix

Remediation Available

chromiumDebian

Fixed in:126.0.6478.56-1~deb12u1CVE-2024-5840

Fixed in:126.0.6478.56-1CVE-2024-5840

Fixed in:126.0.6478.56-1CVE-2024-5840

Google ChromeWindows application

Affected:126.0.6478.54Fixed in:126.0.6478.54Google LLC

Google Chrome (EXE)Windows application

Affected:126.0.6478.54Fixed in:126.0.6478.54Google LLC

Google Chrome BetaWindows application

Affected:126.0.6478.54Fixed in:126.0.6478.54Google LLC

Google Chrome Beta (EXE)Windows application

Affected:126.0.6478.54Fixed in:126.0.6478.54Google LLC

Google Chrome CanaryWindows application

Affected:126.0.6478.54Fixed in:126.0.6478.54Google LLC

Google Chrome DevWindows application

Affected:126.0.6478.54Fixed in:126.0.6478.54Google LLC

Google Chrome Dev (EXE)Windows application

Affected:126.0.6478.54Fixed in:126.0.6478.54Google LLC

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.41%probability of exploitation in 30 days

33rdpercentile

Low risk: more likely to be exploited than 33% of all known CVEs.

References

Third-Party Advisory3

Other references1

issues.chromium.org

Related Vulnerabilities

Other CWE-284 (Improper Access Control) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-27350	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2019-1653	High	7.5	100%	KEV	-
CVE-2023-23752	Medium	5.3	100%	KEV	Fix
CVE-2023-29298	High	7.5	100%	KEV	-
CVE-2023-38205	High	7.5	100%	KEV	-
CVE-2024-27348	Critical	9.8	99%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-03-13.