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High

Out-of-bounds Read in Google Chrome Media

IdentifiersCVE-2026-6308CWE-125· Out-of-bounds Read

CVE-2026-6308 is a high-severity out-of-bounds read vulnerability in the Media component of Google Chrome affecting versions prior to 147.0.7727.101. According to the provided content, a remote attacker could exploit the flaw by convincing a user to engage in specific UI gestures while visiting a crafted HTML page. The issue is described by Google/Chromium as an out-of-bounds read in Media and is associated with potential arbitrary code execution. No further public technical detail about the exact vulnerable function, code path, or memory access pattern is available in the provided 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 may allow a remote attacker to achieve arbitrary code execution in the context of the browser by luring a target to a crafted HTML page and inducing specific user interaction. The content also indicates Chrome security severity is High. As with browser memory-safety flaws, impact can include compromise of confidentiality, integrity, and availability within the affected browser context, though the precise post-exploitation scope is not further specified in the provided material.

Mitigation

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

Until patches are fully deployed, reduce exposure by limiting use of untrusted websites and HTML content, enforcing rapid browser update policies, and using browser sandboxing and endpoint exploit mitigations already present in managed environments. Because exploitation requires a crafted HTML page and specific UI gestures, restricting user interaction with untrusted content may reduce risk. However, patching is the primary mitigation.

Remediation

Patch, then assume compromise.

Upgrade Google Chrome and Chromium-based builds to a version containing the upstream fix. The provided content states the vulnerability affects Google Chrome prior to 147.0.7727.101, so remediation is to update to 147.0.7727.101 or later, and to apply corresponding vendor updates for downstream Chromium-based browsers once available.
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 activity1

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

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-6308
NVD
nvd.nist.gov/vuln/detail/CVE-2026-6308
MITRE CWE · CWE-125
Out-of-bounds Read
Vendor Advisory
chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop_15.html
Permissions Required
issues.chromium.org/issues/497412658