CVE-2026-13978

mediumCVSS 4.3covered by 2 sourcesfirst seen 2026-06-30

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.

CSIRTS triage

What: This vulnerability is an insufficient policy enforcement in PageInfo.
Who is affected: Microsoft Edge (Chromium-based) users that ingest Chromium.
Urgency: Remediation is necessary as it could lead to potential exploitation, although it is currently not exploited.
Action: Update to the latest version of Chromium as per Google Chrome Releases.

AI-assisted analysis generated from the source advisory — verify against the original.

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Exploitation outlook

Low exploitation risk0.23% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 14% of all EPSS-scored CVEs.

Advisory coverage (2)

unknownCVE-2026-13978: Chromium: CVE-2026-13978 Insufficient policy enforcement in PageInfomsrc · 2026-07-02
mediumCVE-2026-13978: Insufficient policy enforcement in PageInfo in Google Chrome prior to 150.0.7871.47 allowed a …nvd · 2026-06-30

External references

NVD record for CVE-2026-13978

CVE.org record

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