UpHeron
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Servers and applications

CVE-2008-3790

The REXML module in Ruby 1.8.6 through 1.8.6-p287, 1.8.7 through 1.8.7-p72, and 1.9 allows context-dependent attackers to cause a denial of service (CPU consumption) via an XML document with recursively nested entities, aka an "XML entity explosion."

Severity
Medium 5.0
Published
27 Aug 2008
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
15% in the next 30 daysHigher than 96% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Improper input validation (CWE-20)
Attack
Over the network · No login needed
Attacker can
Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
RubyServers and applications · cpe:a:ruby-lang:ruby
  • Version 1.9
  • Version 1.8.7-p72
  • Version 1.8.7-p71
  • Version 1.8.7-p22
All 21 release lines
  • Version 1.8.6-preview1
  • Version 1.8.6-preview2
  • Version 1.8.6-preview3
  • Version 1.8.6
  • Version 1.8.6-p36
  • Version 1.8.6-p110
  • Version 1.8.6-p111
  • Version 1.8.6-p114
  • Version 1.8.6-p230
  • Version 1.8.6-p286
  • Version 1.8.6-p287
  • Version 1.8.7-preview1
  • Version 1.8.7-preview2
  • Version 1.8.7-preview3
  • Version 1.8.7-preview4
  • Version 1.8.7
  • Version 1.8.7-p17
  • Version 1.8.7-p22
  • Version 1.8.7-p71
  • Version 1.8.7-p72
  • Version 1.9

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2008-3790
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2008-3790