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CVE-2024-43796 is an improper input-handling vulnerability in the Express.js redirect implementation. In Express versions earlier than 4.20.0, untrusted data supplied to response.redirect() can be interpreted in a manner that results in execution of attacker-controlled code in the client context, including when the application has attempted to sanitize the input. The affected Express 5 prerelease range includes 5.0.0-alpha.1 through versions before 5.0.0.
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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.
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.
17 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Improper input-handling vulnerability in Express redirects addressed by the Network Observability 1.7.0 update.
An improper-input-handling vulnerability in Express redirects.
An improper-input-handling vulnerability in Express redirect functionality.
An improper-input-handling vulnerability in Express redirects.
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.