Back
CVE-2022-39280
Regular expression denial of service in dparse
Medium5.9EPSS 1.3%
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 1.3% · top 29% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.9.
Weakness
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIdparseGHSA-8fg9-p83m-x5pq (opens in a new tab)
References (4)
- https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS (opens in a new tab)x_transferred
- https://github.com/pyupio/dparse/security/advisories/GHSA-8fg9-p83m-x5pq (opens in a new tab)x_transferred
- https://github.com/pyupio/dparse/commit/8c990170bbd6c0cf212f1151e9025486556062d5 (opens in a new tab)x_transferred
- https://github.com/pyupio/dparse/commit/d87364f9db9ab916451b1b036cfeb039e726e614 (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-8fg9-p83m-x5pq (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-39280)Record last updated .