VulnerabilityModified
CVE-2021-43307
An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the semver-regex npm package, when an attacker is able to supply arbitrary input to the test() method
HIGH 7.5EPSS 1.58%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.58%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the semver-regex npm package, when an attacker is able to supply arbitrary input to the test() method
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.58% probability · 74th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-1333
- Affected
- semver-regex project/semver-regex
- Source
- reefs@jfrog.com
References
- https://research.jfrog.com/vulnerabilities/semver-regex-redos-xray-211349/Exploit, Third Party Advisory
- https://research.jfrog.com/vulnerabilities/semver-regex-redos-xray-211349/Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.