Regular expression denial of service (ReDoS) in url-regex
Priority LOW 36CWE-1333Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-1333.
Summary
All versions of package url-regex are vulnerable to Regular Expression Denial of Service (ReDoS) which can cause the CPU usage to crash.
Why it matters now
EPSS 0.01361 71st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | url-regex | all versions | — | No fix listed | CNA |
| — | url_regex (PyPI) | up to 1.0.4 | — | No fix listed | GHSA-hg3w-7hj9-m3f7 |
- url-regex Vendor— Affected all versions Fixed in — No fix listed CNA
- url_regex (PyPI) Vendor— Affected up to 1.0.4 Fixed in — No fix listed GHSA-hg3w-7hj9-m3f7
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:url-regex_project:url-regex:*:*:*:*:*:*:*:* | all versions | Vulnerable | Url-regex Project |
- cpe:2.3:a:url-regex_project:url-regex:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Url-regex Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-21195
- 2026-10-03 Alias added: GHSA-hg3w-7hj9-m3f7
References
More Url-regex Project Url-regex vulnerabilities
- TI-2020-06181 Uncontrolled resource consumption in url-regex CVSS 3.1HIGH 7.5
Sources
- CVE-2022-21195 · CVE Program
- CVE-2022-21195 · NVD
- FIRST EPSS
- GHSA-hg3w-7hj9-m3f7 · GitHub Advisory Database · CC BY 4.0
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