Medium 5.0Published Apr 22, 2014

CVE-2013-6371The hash functionality in json-c before 0.12 allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted JSON data, involving collisions.

Updated under an hour ago (Nov 2, 2026, 12:23 AM ET)

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No exploitation reported and no EPSS estimate yet.

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The hash functionality in json-c before 0.12 allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted JSON data, involving collisions.

CVSS: 5.0 MEDIUM (v2.0, NVD)AV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness (CWE): CWE-310
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

json-c json-c json-c:json-c	before 0.12-20140410	NVD
fedoraproject fedora fedoraproject:fedora	20	NVD

References

References

http://lists.fedoraproject.org/pipermail/package-announce/2014-April/131845.html	third-party-advisory
http://secunia.com/advisories/57791	permissions-required, third-party-advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2014:079	broken-link
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html	third-party-advisory
http://www.securityfocus.com/bid/66715	third-party-advisory, vdb-entry
https://bugzilla.redhat.com/show_bug.cgi?id=1032311	issue-tracking
https://exchange.xforce.ibmcloud.com/vulnerabilities/92541	vdb-entry
https://github.com/json-c/json-c/commit/64e36901a0614bf64a19bc3396469c66dcd0b015	issue-tracking, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.