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Fencer Intel
high 7.5

CVE-2016-2515 json

Regular Expression Denial of Service in hawk

published 2016-04-13 10 y ago modified 2026-06-17 4 mo ago also GHSA-jcpv-g9rr-qxrc , EUVD-2018-0286

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.4%
EPSS 3.4% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

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.

Patch / fix

  • npm hawk 3.1.3, 4.1.1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-2515 updated cvss 5.0

nodejs-hawk: Long headers or URIs can cause minor DoS

  • Red Hat OpenShift Enterprise 3.1 nodejs-hawk Red Hat Software Collections nodejs010-nodejs-hawk, rh-nodejs4-nodejs-hawk
    under investigation

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.37% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-09).

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

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.