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CVE-2005-4836 is an information-disclosure vulnerability in the deprecated HTTP/1.1 connector in Apache Tomcat 4.1.15 through the 4.1.x development branch. When the connector is configured with allowLinking="true", it fails to reject NULL bytes in request URIs. A remote attacker can use a crafted URI containing a NULL byte to retrieve JSP source code rather than its rendered output.
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What an attacker gets, and what they’ve been doing with it.
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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.
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Null-byte request URI flaw enabling JSP source disclosure through the deprecated Tomcat HTTP/1.1 connector.
Information-disclosure flaw in the deprecated Tomcat HTTP/1.1 connector that can expose JSP source code.
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.