CVSS 3.0
5.9 mediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:NCVE-2018-20744
The Olivier Poitrey Go CORS handler through 1.3.0 actively converts a wildcard CORS policy into reflecting an arbitrary Origin header value, which is incompatible with the CORS security design, and could lead to CORS misconfiguration security problems.
Severity
- EPSS
- 0.7% chance of exploitation in the next 30 days; higher than 53% of CVEs (scores of 2026-10-31)
- CWE
- CWE-346
- Published
- Modified
- Record from
- the NVD, synced
Affected
- go_cors_project:go_cors
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-927h-x4qj-r242 | Go | github.com/gofiber/fiber/v2 | >=2.0.0 <2.43.0 | 2.43.0 |
| GHSA-927h-x4qj-r242 | Go | github.com/rs/cors | <1.5.0 | 1.5.0 |
| GO-2023-1792 | Go | github.com/rs/cors | <1.5.0 | 1.5.0 |