CVE-2013-6461

Nokogiri vulnerable to DoS while parsing XML entities

6.5 MediumFix available

CVE-2013-6461 is a medium vulnerability (CVSS 6.5) in Nokogiri, published November 5, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.19%, the 82nd percentile. Fixed in nokogiri 1.5.11.

Nokogiri gem 1.5.x and 1.6.x has DoS while parsing XML entities by failing to apply limits

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

2.19%Up 1.1 points since Feb 4, 2022

What each source reports

NVD Score used 6.5

Nokogiri gem 1.5.x and 1.6.x has DoS while parsing XML entities by failing to apply limits

Record: CVE-2013-6461
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness: CWE-776
Updated: 2026-11-02

CVE List No score

Nokogiri gem 1.5.x and 1.6.x has DoS while parsing XML entities by failing to apply limits

Record: CVE-2013-6461
Updated: 2026-11-02

EUVDEUVD-2022-4399 No score

Nokogiri gem 1.5.x and 1.6.x has DoS while parsing XML entities by failing to apply limits

Record: EUVD-2022-4399
Updated: 2026-11-03

GitHub AdvisoriesGHSA-jmhh-w7xp-wg39 6.5

Nokogiri vulnerable to DoS while parsing XML entities

Nokogiri gem 1.5.x and 1.6.x has DoS while parsing XML entities by failing to apply limits

Record: GHSA-jmhh-w7xp-wg39
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness: CWE-776
Updated: 2026-11-02

OSVGHSA-jmhh-w7xp-wg39 6.5

Nokogiri vulnerable to DoS while parsing XML entities

Nokogiri gem 1.5.x and 1.6.x has DoS while parsing XML entities by failing to apply limits

Record: GHSA-jmhh-w7xp-wg39
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness: CWE-776
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`nokogiri` RubyGems	1.5.0 up to 1.5.11	1.5.11
`nokogiri` RubyGems	1.6.0 up to 1.6.1	1.6.1
`nokogiri` RubyGems	1.5.0 up to 1.5.11, plus listed versions 1.5.11.5.1.rc11.5.101.5.21.5.3 Show 23 moreShow less 1.5.3.rc21.5.3.rc31.5.3.rc41.5.3.rc51.5.3.rc61.5.41.5.4.rc11.5.4.rc21.5.4.rc31.5.51.5.5.rc11.5.5.rc21.5.5.rc31.5.61.5.6.rc11.5.6.rc21.5.6.rc31.5.71.5.7.rc11.5.7.rc21.5.7.rc31.5.81.5.9	1.5.11

History

History
When	Changed	Sources
2026-11-03	aliases	EUVD
2026-11-02	created	CVE List, GitHub Advisories, NVD, OSV

References

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