CVE-2006-5467

CVE-2006-5467 is a medium-severity vulnerability in Yukihiro Matsumoto Ruby with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-399.

Key facts

Description

The cgi.rb CGI library for Ruby 1.8 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via an HTTP request with a multipart MIME body that contains an invalid boundary specifier, as demonstrated using a specifier that begins with a "-" instead of "--" and contains an inconsistent ID.

Frequently asked questions

What is CVE-2006-5467?
The cgi.rb CGI library for Ruby 1.8 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via an HTTP request with a multipart MIME body that contains an invalid boundary specifier, as demonstrated using a specifier that begins with a "-" instead of "--" and contains an inconsistent ID.
How severe is CVE-2006-5467?
CVE-2006-5467 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2006-5467 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-5467?
CVE-2006-5467 affects Yukihiro Matsumoto Ruby. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-5467?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-5467 published?
CVE-2006-5467 was published on 2006-10-27 and last updated on 2026-06-16.

References

Affected products (1)

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