Vulnerability in Parse-Link-Header Project
CVE-2021-23490
The package parse-link-header before 2.0.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via the checkHeader function.
Vulnerability class: ReDoS (Regular Expression Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.018 (78.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Parse-Link-Header Project
- Parse-Link-Header — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- snyk.io/vuln/SNYK-JS-PARSELINKHEADER-1582783 (Exploit, Patch, Third Party Advisory)
- snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2321973 (Exploit, Patch, Third Party Advisory)
- github.com/thlorenz/parse-link-header/commit/72f05c717b3f129c5331a07bf300ed8886… (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-23490?
- CVE-2021-23490 is a high-severity vulnerability in Parse-Link-Header Project, classified under Inefficient Regular Expression Complexity. CVSS score: 7.5/10. Published 2021-12-24.
- How severe is CVE-2021-23490?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-23490 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.