CVE-2016-10521 json
Regular Expression Denial of Service in jshamcrest
published 2018-05-31 8 y ago modified 2026-06-17 4 mo ago also GHSA-xj62-87pg-vcv3 , EUVD-2019-0364
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 65%
- public exploits
- 0
- none known
Summary
jshamcrest is vulnerable to regular expression denial of service (ReDoS) when certain types of user input is passed in to the emailAddress validator.
Exploit prediction
1.09% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | jshamcrest | <=0.7.1 |
no fix listed |
Affected products
- HackerOne jshamcrest node module
Classification
References
-
nodesecurity.io
/advisories/53
broken-link
-
nvd.nist.gov
/vuln/detail/CVE-2016-10521
advisory
-
github.com
/advisories/GHSA-xj62-87pg-vcv3
advisory
-
npmjs.com
/advisories/53
web
Sources
- CVE List CVE-2016-10521
- GitHub Advisory GHSA-xj62-87pg-vcv3
- NVD CVE-2016-10521
Fencer Vulns 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.