Resource exhaustion in Gjson Project
CVE-2021-42836
GJSON before 1.9.3 allows a ReDoS (regular expression denial of service) attack.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.024 (83.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 83.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/tidwall/gjson/issues/236 (Exploit, Third Party Advisory, Issue Tracking)
- github.com/tidwall/gjson/issues/237 (Exploit, Patch, Third Party Advisory, Issue Tracking)
- github.com/tidwall/gjson/commit/77a57fda87dca6d0d7d4627d512a630f89a91c96 (Patch, Third Party Advisory)
- github.com/tidwall/gjson/compare/v1.9.2...v1.9.3 (Third Party Advisory, Release Notes)
- github.com/tidwall/gjson/commit/590010fdac311cc8990ef5c97448d4fec8f29944 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-42836?
- CVE-2021-42836 is a high-severity vulnerability in Gjson Project, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2021-10-22.
- How severe is CVE-2021-42836?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-42836 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.