Regular Expression Denial of Service in hawk

Also known as GHSA-jcpv-g9rr-qxrc

Published 10 y ago 2016-04-13 · modified 4 mo ago 2026-06-17 · JSON

CVSS

7.5

v3.0 · NVD

CISA KEV

not known exploited

EPSS

3.4%

percentile 89%

Public exploits

none known

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.

Exploit prediction (EPSS)

3.37% probability of exploitation in the next 30 days, higher than 89% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
NVD	3.0	7.5	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`
NVD	2.0	7.8	`AV:N/AC:L/Au:N/C:N/I:N/A:C`
GitHub	3.0	7.5	`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`

Affected packages

Ecosystem	Package	Affected	Fixed in
npm	`hawk`	>=4.0.0, <4.1.1 <3.1.3	4.1.1 3.1.3

Classification

Weakness

CWE-399 Resource Management Errors
CWE-1333 Inefficient Regular Expression Complexity

References

github.com /hueniverse/hawk/commit/0833f99ba64558525995a7e21d4093da1f3e15fa · x_refsource_CONFIRM, x_transferred
github.com /hueniverse/hawk/issues/168 · x_refsource_CONFIRM, x_transferred
nodesecurity.io /advisories/77 · x_refsource_MISC, x_transferred
bugzilla.redhat.com /show_bug.cgi?id=1309721 · x_refsource_CONFIRM, x_transferred
openwall.com /lists/oss-security/2016/02/20/1 · mailing-list, x_refsource_MLIST, x_transferred
openwall.com /lists/oss-security/2016/02/20/2 · mailing-list, x_refsource_MLIST, x_transferred
nvd.nist.gov /vuln/detail/CVE-2016-2515 · advisory
github.com /advisories/GHSA-jcpv-g9rr-qxrc · advisory
github.com /hueniverse/hawk · package
npmjs.com /advisories/77 · web

Sources

CVE List: CVE-2016-2515
GitHub Advisory: GHSA-jcpv-g9rr-qxrc
NVD: CVE-2016-2515

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