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CVE-2021-30897

webkitgtk: Cross-origin data exfiltration via resource timing API

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Severity

Moderate

Red Hat Product Security

6.5

CVSS 3.1

Review impact separately from score.

Published · December 20, 2021

Updated · November 22, 2025

Description

A flaw was found in the resource timing API specification and its implementation in WebKitGTK. A malicious web site could use this flaw to trigger a cross-domain data exfiltration.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor