Vulnerability in Ansi-Regex Project
CVE-2021-3807
ansi-regex is vulnerable to Inefficient Regular Expression Complexity
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: 0.036 (88.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.036 · newest: 0.036 · change: 0.000
Affected products
- Ansi-Regex Project — versions 3.0.0, 5.0.0, 6.0.0
- Chalk Chalk/ansi-Regex — versions unspecified, 5.0.1
- Oracle Communications Cloud Native Core Policy — versions 1.15.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- huntr.dev/bounties/5b3cf33b-ede0-4398-9974-800876dfd994 (Exploit, Patch, Third Party Advisory, Issue Tracking)
- github.com/chalk/ansi-regex/commit/8d1d7cdb586269882c4bdc1b7325d0c58c8f76f9 (Patch, Third Party Advisory)
- www.oracle.com/security-alerts/cpuapr2022.html (Patch, Third Party Advisory)
- security.netapp.com/advisory/ntap-20221014-0002/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-3807?
- CVE-2021-3807 is a high-severity vulnerability in Ansi-Regex Project, classified under Inefficient Regular Expression Complexity. CVSS score: 7.5/10. Published 2021-09-17.
- How severe is CVE-2021-3807?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-3807 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.