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High

Use-after-free in ANGLE in Google Chrome

IdentifiersCVE-2026-9878CWE-416· Use After Free

CVE-2026-9878 is a use-after-free vulnerability in the ANGLE graphics component of Google Chrome. According to the provided content, affected versions are Chrome prior to 148.0.7778.216. The flaw can be triggered by a remote attacker via a crafted HTML page, leading to memory corruption in ANGLE and enabling arbitrary code execution within the Chrome sandbox. The issue is rated Critical by Chromium.

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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 a remote attacker to execute arbitrary code inside the Chrome sandbox in the context of the browser process handling the malicious content. As described in the supporting content, this class of memory corruption bug may also contribute to broader exploitation chains, including follow-on sandbox escape or data corruption, but the specific confirmed impact for this CVE is arbitrary code execution inside the sandbox.

Mitigation

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

No specific workaround or temporary mitigation is provided in the supplied content. The recommended mitigation is prompt patching to a fixed Chrome/Chromium release and ensuring browsers are restarted so the update is applied.

Remediation

Patch, then assume compromise.

Upgrade Google Chrome to version 148.0.7778.216 or later. Where Chromium is consumed via Debian packages, upgrade to the fixed chromium package versions referenced in the advisory: 148.0.7778.215-1~deb12u1 for Debian 12 bookworm oldstable or 148.0.7778.215-1~deb13u1 for Debian 13 trixie stable.
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

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

2 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-2026-9878
NVD
nvd.nist.gov/vuln/detail/CVE-2026-9878
MITRE CWE · CWE-416
Use After Free
Release Notes
chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html
Permissions Required
issues.chromium.org/issues/499054245