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VulnerabilityPublished

CVE-2026-7958: Google Chrome · Inappropriate Implementation

Affects Google ChromeSource CVE Database V5

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Not known to be exploited · CVSS 5.4 Medium : upgrade to 148.0.7778.96 when convenient.

Data as of 30 Oct 2026, 06:59 UTC

CVSS 3.1 base score
5.4Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 148.0.7778.96
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade Google Chrome to 148.0.7778.96.

Affected software

ProductAffectedFixed in
GoogleChromeAffected
  • >=148.0.7778.96 <148.0.7778.96
Fixed in
  • 148.0.7778.96

AI-suggested

The vendor advisory URL is provided but does not explicitly confirm patch availability or remediation steps in the given data. Users should update Google Chrome to version 148.0.7778.96 or later, as the vulnerability affects versions prior to this. If unable to update immediately, users should avoid installing untrusted or unknown Chrome extensions to mitigate risk.

Description

Inappropriate implementation in ServiceWorker in Google Chrome prior to 148.0.7778.96 allowed an attacker who convinced a user to install a malicious extension to inject arbitrary scripts or HTML (UXSS) via a crafted Chrome Extension. (Chromium security severity: Medium)

References

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