How severe is CVE-2026-5901?

CVE-2026-5901 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-5901 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-5901?

CVE-2026-5901 affects Google Chrome. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5901?

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

Does CVE-2026-5901 have an EU (EUVD) identifier?

Yes. CVE-2026-5901 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20725.

When was CVE-2026-5901 published?

CVE-2026-5901 was published on 2026-04-08 and last updated on 2026-06-17.

CVE-2026-5901

CVE-2026-5901 is a medium-severity vulnerability in Google Chrome with a CVSS 3.x base score of 6.5. 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-602.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-20725
Weakness: CWE-602
Affected product: Google Chrome
Published: 2026-04-08
Last modified: 2026-06-17

Description

Insufficient policy enforcement in DevTools in Google Chrome prior to 147.0.7727.55 allowed an attacker who convinced a user to install a malicious extension to bypass enterprise host restrictions for cookie modification via a crafted Chrome Extension. (Chromium security severity: Low)

Frequently asked questions

What is CVE-2026-5901?: Insufficient policy enforcement in DevTools in Google Chrome prior to 147.0.7727.55 allowed an attacker who convinced a user to install a malicious extension to bypass enterprise host restrictions for cookie modification via a crafted Chrome Extension. (Chromium security severity: Low)
How severe is CVE-2026-5901?: CVE-2026-5901 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-5901 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5901?: CVE-2026-5901 affects Google Chrome. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5901?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-5901 have an EU (EUVD) identifier?: Yes. CVE-2026-5901 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-20725.
When was CVE-2026-5901 published?: CVE-2026-5901 was published on 2026-04-08 and last updated on 2026-06-17.

References

Affected products (1)

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

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