CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NCVE-2021-33197
Medium (5.3) in golang go. EPSS 2.3% chance of exploitation in the next 30 days. Fixed in stdlib 1.15.13, 1.16.5.
In Go before 1.15.13 and 1.16.x before 1.16.5, some configurations of ReverseProxy (from net/http/httputil) result in a situation where an attacker is able to drop arbitrary headers.
Severity
- EPSS
- 2.3% chance of exploitation in the next 30 days; higher than 82% of CVEs (scores of 2026-10-31)
- CWE
- CWE-862
- Published
- Modified
- Record from
- the NVD, synced
Affected
- golang:go
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GO-2021-0241 | Go | stdlib | <1.15.13 >=1.16.0-0 <1.16.5 | 1.15.13, 1.16.5 |