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CVE-2026-0716 is an out-of-bounds read in libsoup WebSocket frame processing. When an application uses the non-default configuration in which the maximum incoming WebSocket payload size is unset, processing incoming messages can access memory outside the intended bounds. Affected applications using libsoup WebSocket support may expose memory contents or terminate unexpectedly.
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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.
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Patch, then assume compromise.
No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Prior libsoup WebSocket integer-overflow issue whose incomplete fix led to CVE-2026-12478.
A vulnerability affecting the Fedora 43 libsoup3 package; the supplied CVSS v2 vector indicates a remotely reachable issue with high attack complexity that can affect confidentiality and availability.
A prior libsoup vulnerability whose fix in libsoup 3.6.6 was incomplete and introduced the condition underlying CVE-2026-12478.
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.