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CVE-2026-43727 is a use-after-free vulnerability in WebKit affecting Safari, WebKitGTK, and WPE WebKit. Improper memory management during processing of maliciously crafted web content can cause an unexpected Safari or web-content process crash. WebKitGTK and WPE WebKit versions before 2.52.5 are affected. The issue was corrected through improved memory management; the specific vulnerable function and triggering input structure are not identified.
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No public exploit code observed for this vulnerability.
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30 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A use-after-free vulnerability affecting webkit2gtk and Apple software that processes web content. Maliciously crafted web content can cause an unexpected Safari crash. The reference assigns a CVSS v3 score of 6.5, with user interaction required and high availability impact; it does not describe confidentiality or integrity impact. Updating webkit2gtk and related packages to version 2.52.5-1~deb13u1 or later is recommended.
A WebKitGTK vulnerability in which maliciously crafted web content can cause an unexpected process crash.
A WebKitGTK vulnerability allowing maliciously crafted web content to cause an unexpected process crash. The advisory includes a fix in the webkit2gtk3 security update.
A WebKitGTK vulnerability allowing maliciously crafted web content to cause an unexpected process crash.
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.