Loading vulnerability…
CVE-2026-78376 is a use-after-free vulnerability in WebKitGTK involving JSCValue function parameters. Improper memory handling while processing malicious web content can leave memory in an invalid state and cause memory corruption. Affected deployments include WebKitGTK packages on Red Hat Enterprise Linux 7, 8, and 9, and WebKitGTK on TencentOS Server 4.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity vulnerability affecting TencentOS Server 4, rated CVSS 8.8. It requires user interaction but can result in high confidentiality, integrity, and availability impact.
A high-severity use-after-free vulnerability in WebKitGTK that can be triggered by processing malicious web content, leading to memory corruption.
A use-after-free vulnerability in WebKitGTK triggered by processing malicious web content, leading to memory corruption with possible remote code execution.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.