CVE-2022-39280
Regular expression denial of service in dparse
- State
- Published
- Severity
- 5.9 Medium
- Published
- Oct 6, 2022
- Updated
- Apr 23, 2025
- Reserved
- Sep 2, 2022
Description
dparse is a parser for Python dependency files. dparse in versions before 0.5.2 contain a regular expression that is vulnerable to a Regular Expression Denial of Service. All the users parsing index server URLs with dparse are impacted by this vulnerability. A patch has been applied in version `0.5.2`, all the users are advised to upgrade to `0.5.2` as soon as possible. Users unable to upgrade should avoid passing index server URLs in the source file to be parsed.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.9 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | GitHub_M |
Weaknesses
- CWE-400 Uncontrolled Resource Consumption
Affected Products
| Product | Versions |
|---|---|
dparsepyupio |
|
References
- https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS
- https://github.com/pyupio/dparse/security/advisories/GHSA-8fg9-p83m-x5pq
- https://github.com/pyupio/dparse/commit/8c990170bbd6c0cf212f1151e9025486556062d5
- https://github.com/pyupio/dparse/commit/d87364f9db9ab916451b1b036cfeb039e726e614
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