Vulnerability in Github.com/gorilla/handlers
CVE-2017-20146
Usage of the CORS handler may apply improper CORS headers, allowing the requester to explicitly control the value of the Access-Control-Allow-Origin header, which bypasses the expected behavior of the Same Origin Policy.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (51.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Github.com/gorilla/handlers — versions 0
- Gorillatoolkit Handlers
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/gorilla/handlers/pull/116 (Patch, Third Party Advisory)
- github.com/gorilla/handlers/commit/90663712d74cb411cbef281bc1e08c19d1a76145 (Patch, Third Party Advisory)
- pkg.go.dev/vuln/GO-2020-0020 (Third Party Advisory)
Frequently asked questions
- What is CVE-2017-20146?
- CVE-2017-20146 is a critical-severity vulnerability in Github.com/gorilla/handlers, classified under Origin Validation Error. CVSS score: 9.8/10. Published 2022-12-27.
- How severe is CVE-2017-20146?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-20146 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.