Prototype Pollution in Openjsf Express
CVE-2022-24999
qs before 6.10.3, as used in Express before 4.17.3 and other products, allows attackers to cause a Node process hang for an Express application because an __ proto__ key can be used. In many typical Express use cases, an unauthenticated re…
Vulnerability class: Prototype Pollution
EPSS: 0.147 (96.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Openjsf Express
- Qs_project Qs — versions 6.4.0, 6.6.0
- Debian Debian_linux — versions 10.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Release Notes)
- cve@mitre.org (Patch, Issue Tracking)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
- cve@mitre.org
Frequently asked questions
- What is CVE-2022-24999?
- CVE-2022-24999 is a high-severity vulnerability in Openjsf Express, classified under Improperly Controlled Modification of Object Prototype Attributes (Prototype Pollution). CVSS score: 7.5/10. Published 2022-11-26.
- How severe is CVE-2022-24999?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-24999 known to be exploited?
- 33 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.