CVE-2016-2515

HIGHNVD 7.57.5—

7.5

Hawk before 3.1.3 and 4.x before 4.1.1 allow remote attackers to cause a denial of service (CPU consumption or partial outage) via a long (1) header or (2) URI that is matched against an improper regular expression.

CVSS v3: 7.5
EG Score: 7.5(medium)
EPSS: 90.2%
KEV: Not listed

Published

April 13, 2016

Last Modified

May 6, 2026

References (12)

secalert@redhathttp://www.openwall.com/lists/oss-security/2016/02/20/1
secalert@redhathttp://www.openwall.com/lists/oss-security/2016/02/20/2
secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=1309721
secalert@redhathttps://github.com/hueniverse/hawk/commit/0833f99ba64558525995a7e21d4093da1f3e15fa
secalert@redhathttps://github.com/hueniverse/hawk/issues/168
secalert@redhathttps://nodesecurity.io/advisories/77
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/02/20/1
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/02/20/2
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1309721
af854a3a-2127-422b-91ae-364da2661108https://github.com/hueniverse/hawk/commit/0833f99ba64558525995a7e21d4093da1f3e15fa
af854a3a-2127-422b-91ae-364da2661108https://github.com/hueniverse/hawk/issues/168
af854a3a-2127-422b-91ae-364da2661108https://nodesecurity.io/advisories/77

Affected Packages

(1 across 1 ecosystem)

npm(1)

Package	Vulnerable range	Fixed in	Dependents
hawk	—	3.1.3	—

Data Freshness Timeline

(refreshed 13× in last 7d / 18× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-24 16:43 UTCepss_batch
2026-05-23 00:10 UTCEG score recompute
2026-05-22 21:15 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-22 20:49 UTCEG score recompute
2026-05-22 06:06 UTCOSV refresh
2026-05-21 22:40 UTCepss_batch
2026-05-20 22:37 UTCepss_batch
2026-05-20 22:37 UTCepss_batch
2026-05-20 22:37 UTCepss_batch
2026-05-20 11:21 UTCepss_batch
2026-05-20 11:21 UTCepss_batch
2026-05-20 11:21 UTCepss_batch
2026-05-18 21:30 UTCepss_batch
2026-05-18 21:30 UTCepss_batch

Frequently asked(5)

What is CVE-2016-2515?

CVE-2016-2515 is a high vulnerability published on April 13, 2016. Hawk before 3.1.3 and 4.x before 4.1.1 allow remote attackers to cause a denial of service (CPU consumption or partial outage) via a long (1) header or (2) URI that is matched against an improper regular expression.

When was CVE-2016-2515 disclosed?

CVE-2016-2515 was first published in the National Vulnerability Database on April 13, 2016, 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-2016-2515 actively exploited?

CVE-2016-2515 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 90.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2016-2515?

CVE-2016-2515 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-2016-2515?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-2515, 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.

Dependency Blast Radius

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CVE-2016-2515

📅 Published

🔄 Last Modified

🔗 References (12)