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CVE-2022-39280

25
FAUCET Score

CVE-2022-39280 is a Regular Expression Denial of Service (ReDoS) vulnerability affecting dparse versions prior to 0.5.2, a Python dependency file parser. This flaw impacts users parsing index server URLs, potentially leading to service disruption. With a CVSS score of 7.5 (High), it presents a network-based, low-complexity attack vector that can result in high availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.5.1CPE matchmatch criteria
cpe:2.3:a:pyup:dependency_parser:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.03%
Probability of exploitation in next 30 days
EPSS Percentile
60.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0103 is in the 37th percentile among its peer group of 51,455 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: dparseFixed in: 0.5.2

Vendor Advisories (1)

pipGHSA-8fg9-p83m-x5pqhigh

ReDoS issue in dparse

Sep 27, 2022

References

github.com / pyupio/dparse/commit/8c990170bbd6c0cf212f1151e9025486556062d5
PatchThird Party Advisory
github.com / pyupio/dparse/commit/d87364f9db9ab916451b1b036cfeb039e726e614
PatchThird Party Advisory
github.com / pyupio/dparse/security/advisories/GHSA-8fg9-p83m-x5pq
Third Party Advisory
owasp.org / www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS
Technical DescriptionThird Party Advisory