Regular expression denial of service in validator.js
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-3765 |
| CWE-ID | CWE-185 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
validator.js Web applications / JS libraries |
| Vendor | validatorjs |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Incorrect Regular Expression
EUVDB-ID: #VU68281
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-3765
CWE-ID:
CWE-185 - Incorrect Regular Expression
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a regular expression denial of service (ReDoS) attack.
The vulnerability exists due to improper input validation when handling user-supplied input. A remote attacker can pass specially crafted data to the application and perform a regular expression denial of service (ReDoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsvalidator.js: 0.5.0 - 13.6.1
External linkshttp://huntr.dev/bounties/c37e975c-21a3-4c5f-9b57-04d63b28cfc9
http://github.com/validatorjs/validator.js/commit/496fc8b2a7f5997acaaec33cc44d0b8dba5fb5e1
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
