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High

Use-after-free in Google Chrome MediaStream

IdentifiersCVE-2026-3922CWE-416· Use After Free

CVE-2026-3922 is a high-severity use-after-free vulnerability in the MediaStream component of Google Chrome affecting versions prior to 146.0.7680.71. According to the provided content, a remote attacker can trigger the flaw by causing a target to load a crafted HTML page. Successful exploitation may result in heap corruption. No further technical detail about the specific vulnerable function or code path is 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 can lead to heap corruption in the browser process. Based on the provided CVSS vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H), the vulnerability may have high impact on confidentiality, integrity, and availability, potentially enabling severe compromise of the affected browser context after user interaction. The provided content does not explicitly confirm remote code execution, so that outcome cannot be stated with certainty from the available information alone.

Mitigation

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

If immediate patching is not possible, reduce exposure by limiting use of untrusted or unknown websites and restricting browser-based access to attacker-controlled HTML content until the update can be applied. Because exploitation requires user interaction with a crafted page, standard browser hardening and user-awareness measures may reduce risk, but the primary mitigation is prompt upgrade to a fixed Chrome release.

Remediation

Patch, then assume compromise.

Upgrade Google Chrome to version 146.0.7680.71 or later. The provided content indicates that this issue was fixed in the Chrome 146 stable channel release for supported platforms. Applying the vendor update and restarting the browser is required for the fix to take effect.
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

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

6 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 activity3

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

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-3922
NVD
nvd.nist.gov/vuln/detail/CVE-2026-3922
MITRE CWE · CWE-416
Use After Free
Vendor Advisory
chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_10.html
Permissions Required
issues.chromium.org/issues/485397139