CVE-2013-6401

NONECVSS 0.0

0.0

Jansson, possibly 2.4 and earlier, does not restrict the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted JSON document.

CVSS v3: —
EG Score: 0.0(none)
EPSS: 57.1%
KEV: Not listed

Published

March 21, 2014

Last Modified

May 6, 2026

References (8)

secalert@redhathttp://comments.gmane.org/gmane.comp.security.oss.general/12099
secalert@redhathttp://lists.opensuse.org/opensuse-updates/2014-03/msg00057.html
secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=1035538
secalert@redhathttps://github.com/akheron/jansson/commit/8f80c2d83808150724d31793e6ade92749b1faa4
af854a3a-2127-422b-91ae-364da2661108http://comments.gmane.org/gmane.comp.security.oss.general/12099
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-updates/2014-03/msg00057.html
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1035538
af854a3a-2127-422b-91ae-364da2661108https://github.com/akheron/jansson/commit/8f80c2d83808150724d31793e6ade92749b1faa4

Data Freshness Timeline

(refreshed 10× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:14 UTCEPSS rescore
2026-06-07 15:22 UTCEPSS rescore
2026-06-06 13:45 UTCEPSS rescore
2026-06-06 13:45 UTCEPSS rescore
2026-06-05 22:44 UTCEPSS rescore
2026-06-05 22:44 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-04 13:09 UTCEPSS rescore
2026-06-04 13:09 UTCEPSS rescore
2026-06-02 20:10 UTCEPSS rescore
2026-06-02 20:10 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 00:14 UTCEPSS rescore
2026-05-31 00:14 UTCEPSS rescore
2026-05-29 13:41 UTCEPSS rescore
2026-05-29 13:41 UTCEPSS rescore

Frequently asked(4)

What is CVE-2013-6401?

CVE-2013-6401 is a none vulnerability published on March 21, 2014. Jansson, possibly 2.4 and earlier, does not restrict the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via a crafted JSON document.

When was CVE-2013-6401 disclosed?

CVE-2013-6401 was first published in the National Vulnerability Database on March 21, 2014, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2013-6401 actively exploited?

CVE-2013-6401 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 57.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2013-6401?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2013-6401, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2013-6401

📅 Published

🔄 Last Modified

🔗 References (8)