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CVE-2011-4838

JRuby before 1.6.5.1 computes hash values without restricting the ability to trigger hash collisions predictably, which allows…

Medium5.0EPSS 4.2%
Published
Updated
Reserved
Assigned by
mitre

Description

JRuby before 1.6.5.1 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.

Scores

CVSS scores of CVE-2011-4838, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified2.0Medium5.0AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS (exploitation in 30 days)
4.2% · top 9.0% of all CVEs (2 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.

Weakness

Affected products

  • n/a

    • affected n/a

References (10)

Sources

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Record last updated .