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Medium

Heap Buffer Overflow in Chrome Skia

IdentifiersCVE-2026-6298CWE-122· Heap-based Buffer Overflow

CVE-2026-6298 is a critical heap buffer overflow vulnerability in Skia, Chrome/Chromium’s 2D graphics library. According to the provided content, affected Google Chrome versions prior to 147.0.7727.101 on Linux and prior to 147.0.7727.101/102 on Windows and macOS can be triggered by a remote attacker via a crafted HTML page. The flaw is described as a heap-based buffer overflow in the Skia component, which implies that malformed web content can cause Skia to write past the bounds of an allocated heap buffer during graphics processing, leading to memory corruption. The vendor description specifically notes potential disclosure of sensitive information from process memory, and broader release context indicates Chrome treated this as a Critical-severity memory-safety issue.

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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 corrupt heap memory in the Chrome process handling the vulnerable Skia code path. The vendor description specifically states that a remote attacker may obtain potentially sensitive information from process memory via a crafted HTML page, indicating an information disclosure impact. The broader release context for this Chrome update also notes that critical memory corruption issues may enable arbitrary code execution, denial of service, or broader compromise, but the specific confirmed impact provided for CVE-2026-6298 in the supplied content is exposure of sensitive process memory.

Mitigation

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

No specific workaround or configuration-based mitigation for CVE-2026-6298 is provided in the supplied content. Until patching is completed, risk can only be reduced operationally by limiting exposure to untrusted web content and ensuring rapid browser update deployment, but the confirmed mitigation in the available information is to apply the patched browser version.

Remediation

Patch, then assume compromise.

Update Google Chrome to version 147.0.7727.101 or later on Linux, and to 147.0.7727.101/102 or later on Windows and macOS. Chromium-based browsers should incorporate the corresponding upstream Chromium fix as they release their own updates. Applying the vendor patch is the primary remediation reflected in the provided content.
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.

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Exposure mapping

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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-2026-6298
NVD
nvd.nist.gov/vuln/detail/CVE-2026-6298
MITRE CWE · CWE-122
Heap-based Buffer Overflow
Vendor Advisory
chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop_15.html
Permissions Required
issues.chromium.org/issues/495700484