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Sensitive information disclosure in Google Chrome Media

IdentifiersCVE-2026-12450CWE-200

CVE-2026-12450 is a high-severity inappropriate implementation vulnerability in the Media component of Google Chrome prior to 149.0.7827.155. According to the provided advisory text, a remote attacker can use a crafted HTML page to cause Chrome to disclose potentially sensitive information from process memory. The issue is described generically as an inappropriate implementation flaw; the specific vulnerable function or code path is not provided in the available content.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows remote disclosure of potentially sensitive information from the Chrome process memory. Depending on what data is resident in memory at the time of exploitation, this could expose confidential browser or application data and may aid further exploitation or exploit chaining. The broader advisory context classifies the issue as high severity and places it among vulnerabilities that can contribute to information disclosure on the targeted system.

Mitigation

If you can’t patch tonight, do this now.

No specific workaround or temporary mitigation is provided in the supplied advisories. Practical interim risk reduction is limited to reducing exposure to untrusted web content until patching is completed, but the authoritative remediation in the provided content is to update to a fixed version.

Remediation

Patch, then assume compromise.

Upgrade Google Chrome to version 149.0.7827.155 or later. Where Chromium is consumed via Debian packages, upgrade to the fixed package versions identified in the advisory: 149.0.7827.155-1~deb13u1 for Debian stable (trixie) or 149.0.7827.155-1~deb12u1 for Debian oldstable (bookworm).
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
GoogleChromeapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

4 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-12450
NVD
nvd.nist.gov/vuln/detail/CVE-2026-12450
MITRE CWE · CWE-200
cwe.mitre.org