VulnerabilityModified

CVE-2012-5370

MEDIUM 5.0EPSS 2.25%

Does this matter?

Lower severity and a low EPSS score (2.25%). Track it; it rarely justifies an emergency change on its own.

Description

JRuby computes hash values without properly 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, as demonstrated by a universal multicollision attack against the MurmurHash2 algorithm, a different vulnerability than CVE-2011-4838.

CVSS 2.0: 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS: 2.25% probability · 83th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-310
Affected: jruby/jruby
Source: cve@mitre.org

EPSS trend

EPSS 2.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.