CVE-2026-87539

Observable discrepancy in Network in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

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CVSS v3.1

3.1 LOW

EPSS

0.21%

probability of exploitation in 30 days

CISA KEV

Not listed

no confirmed exploitation reported

News coverage

sources referencing this CVE

EPSS Trend

Sep 10, 2026 → Sep 12, 2026

● 0.01pp

0.21% → 0.21% over 3 tracked changes

CVSS v3.1 Detail

Attack VectorNETWORK

Attack ComplexityHIGH

Privileges RequiredNONE

User InteractionREQUIRED

ScopeUNCHANGED

ConfidentialityLOW

IntegrityNONE

AvailabilityNONE

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

Connections

2 relationships

CWE-203

source

Timeline

disclosure → media coverage

Sep 9, 2026

Disclosure — published as a CVE record.