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

CVSS v3.1

7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1

5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0

5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS

1.58% chance of exploitation in the next 30 days, 74th percentile

Published

2022-06-01

Updated

2024-09-17

Proof-of-concept exploits (1)

• https://research.jfrog.com/vulnerabilities/semver-regex-redos-xray-211349/

References

• CVE Record
• NVD entry

Related

• CVE-2021-43306
• CVE-2021-43308
• CVE-2021-43305
• CVE-2021-43309
• CVE-2021-43304
• CVE-2021-43311