Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Network-delivered via crafted page with no privileges needed (PR:N), active user navigation required (UI:R), and impact limited to partial confidentiality leak with no integrity or availability consequence.
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
3DescriptionCVE.org
Inappropriate implementation in Preload in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)
AnalysisAI
Cross-origin data leakage in Google Chrome's Preload subsystem (prior to 148.0.7778.96) allows a remote attacker to infer cross-origin information by luring a victim to a crafted HTML page. The flaw is a protection mechanism failure (CWE-693) in Chrome's speculative resource-fetching logic, breaking expected Same-Origin Policy isolation. No public exploit code exists and CISA has not listed this in KEV; an EPSS of 0.03% (9th percentile) and an SSVC exploitation rating of 'none' confirm negligible real-world exploitation interest at time of analysis.
Technical ContextAI
The vulnerability lies in Chrome's Preload subsystem - the browser engine component responsible for speculative resource fetching initiated by mechanisms such as 'link rel=preload' or Speculation Rules. CWE-693 (Protection Mechanism Failure) indicates that a security control enforcing cross-origin isolation within this subsystem was implemented incorrectly, allowing a crafted page to observe or infer data belonging to a different origin. The affected CPE is cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* covering all Chrome versions on all platforms prior to 148.0.7778.96. Downstream Linux distribution package maintainers at Red Hat and SUSE have also tracked this issue, indicating it affects Chrome as packaged in enterprise Linux environments in addition to the upstream Chromium-based binary.
RemediationAI
Update Google Chrome to version 148.0.7778.96 or later using the browser's built-in update mechanism (Menu → Help → About Google Chrome) or via the stable channel release described at http://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html. Red Hat and SUSE enterprise users should apply updated Chromium or Chrome browser packages from their respective distribution security channels once those packages become available. No practical user-facing workaround exists to disable Preload in standard Chrome configurations without enterprise policy intervention; disabling speculative loading via enterprise policy (e.g., setting NetworkPredictionOptions) would mitigate the vector but degrade page load performance and is not warranted given the low severity. Given the EPSS near-zero and absence of active exploitation, this vulnerability is appropriate for inclusion in the next routine patch cycle rather than emergency remediation.
Same weakness CWE-693 – Protection Mechanism Failure
View allSame technique Information Disclosure
View allVendor StatusVendor
SUSE
Severity: MediumShare
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-28131