UpHeron
All vulnerabilities

Servers and applications

CVE-2005-4836

The HTTP/1.1 connector in Apache Tomcat 4.1.15 through 4.1.40 does not reject NULL bytes in a URL when allowLinking is configured, which allows remote attackers to read JSP source files and obtain sensitive information.

Severity
High 7.8
Published
31 Dec 2005
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
3.5% in the next 30 daysHigher than 89% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Information exposure (CWE-200)
Attack
Over the network · No login needed
Attacker can
Read data
CVSS vector
AV:N/AC:L/Au:N/C:C/I:N/A:N
Sources
NVD

Affected software

SoftwareAffected versions
Apache TomcatServers and applications · cpe:a:apache:tomcat
  • Version 4.1.40
  • Version 4.1.39
  • Version 4.1.37
  • Version 4.1.36
All 26 release lines
  • Version 4.1.15
  • Version 4.1.16
  • Version 4.1.17
  • Version 4.1.18
  • Version 4.1.19
  • Version 4.1.20
  • Version 4.1.21
  • Version 4.1.22
  • Version 4.1.23
  • Version 4.1.24
  • Version 4.1.25
  • Version 4.1.26
  • Version 4.1.27
  • Version 4.1.28-alpha
  • Version 4.1.29-alpha
  • Version 4.1.29
  • Version 4.1.30
  • Version 4.1.31
  • Version 4.1.32
  • Version 4.1.33
  • Version 4.1.34
  • Version 4.1.35
  • Version 4.1.36
  • Version 4.1.37
  • Version 4.1.39
  • Version 4.1.40

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2005-4836
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2005-4836