Chrome (Prior to 148.0.7778.96/97 for Windows and Mac) — CraftedSignal Threat Feedhttps://feed.craftedsignal.io/products/chrome-prior-to-148.0.7778.96/97-for-windows-and-mac/Trending threats, MITRE ATT&CK coverage, and detection metadata — refreshed continuously.Hugoenhello@craftedsignal.iohello@craftedsignal.ioWed, 06 May 2026 00:00:00 +0000Multiple Unspecified Vulnerabilities in Google Chromehttps://feed.craftedsignal.io/briefs/2026-05-chrome-vulns/Wed, 06 May 2026 00:00:00 +0000hello@craftedsignal.iohttps://feed.craftedsignal.io/briefs/2026-05-chrome-vulns/Multiple unspecified vulnerabilities in Google Chrome prior to version 148.0.7778.96 for Linux and 148.0.7778.96/97 for Windows and Mac could allow an attacker to cause an unspecified security issue.Multiple vulnerabilities have been discovered in Google Chrome versions before 148.0.7778.96 for Linux and before 148.0.7778.96/97 for Windows and Mac, as reported in the Google Chrome security bulletin on May 5, 2026. The CERT-FR advisory CERTFR-2026-AVI-0535 highlights that these vulnerabilities could allow an attacker to trigger an unspecified security issue. The lack of specific details from the vendor makes it difficult to assess the exact nature and impact of the vulnerabilities. Defenders should prioritize patching Chrome installations to the latest versions to mitigate potential risks.

Attack Chain

Due to the unspecified nature of the vulnerabilities, a precise attack chain cannot be constructed. However, a general exploitation scenario might involve the following steps:

  1. An attacker identifies a vulnerable version of Google Chrome running on a target system (versions prior to 148.0.7778.96 for Linux, and 148.0.7778.96/97 for Windows and Mac).
  2. The attacker crafts a malicious web page or injects malicious code into a legitimate website, designed to exploit one of the unspecified vulnerabilities.
  3. The victim visits the malicious web page or a compromised legitimate site using the vulnerable version of Chrome.
  4. The attacker leverages the unspecified vulnerability to execute arbitrary code within the context of the Chrome browser process.
  5. The attacker gains unauthorized access to sensitive data stored within the browser, such as cookies, credentials, or browsing history.
  6. The attacker could potentially use the compromised Chrome process as a stepping stone to further compromise the underlying operating system, depending on the specific vulnerability.

Impact

The impact of these vulnerabilities is unspecified, making it difficult to quantify potential damage. Successful exploitation could lead to arbitrary code execution within the Chrome browser, potentially allowing attackers to steal sensitive information, such as credentials or session cookies. Depending on the nature of the vulnerability, attackers might also be able to perform cross-site scripting (XSS) attacks or gain unauthorized access to the user’s system. The number of potential victims is substantial, given the widespread use of Google Chrome.

Recommendation

  • Upgrade Google Chrome to the latest version (148.0.7778.96 or later for Linux, and 148.0.7778.96/97 or later for Windows and Mac) to patch the vulnerabilities as recommended in the Google Chrome security bulletin of May 5, 2026.
  • Deploy the Sigma rule “Detect Chrome User-Agent anomalies” to identify potentially outdated or suspicious Chrome versions accessing web resources.
  • Monitor web server logs for suspicious activity originating from Chrome browsers, using the “Detect Suspicious HTTP User Agent” Sigma rule.
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