How severe is CVE-2026-18019?

CVE-2026-18019 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-18019 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-18019?

CVE-2026-18019 affects Google Chrome. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-18019?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-18019 published?

CVE-2026-18019 was published on 2026-07-30 and last updated on 2026-10-23.

CVE-2026-18019

CVE-2026-18019 is a medium-severity vulnerability in Google Chrome with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1300.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1300
Affected product: Google Chrome
Published: 2026-07-30
Last modified: 2026-10-23

Description

Side-channel information leakage in Media in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)

Frequently asked questions

What is CVE-2026-18019?: Side-channel information leakage in Media in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)
How severe is CVE-2026-18019?: CVE-2026-18019 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-18019 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-18019?: CVE-2026-18019 affects Google Chrome. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-18019?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-18019 published?: CVE-2026-18019 was published on 2026-07-30 and last updated on 2026-10-23.

References

Affected products (1)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

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