CVE-2022-27780
HIGH7.5EPSS 0.18%Published: 6/2/2022Modified: 12/3/2025
Also known as:ALPINE-CVE-2022-27780
Description
The curl URL parser wrongly accepts percent-encoded URL separators like '/'when decoding the host name part of a URL, making it a *different* URL usingthe wrong host name when it is later retrieved.For example, a URL like `http://example.com%2F127.0.0.1/`, would be allowed bythe parser and get transposed into `http://example.com/127.0.0.1/`. This flawcan be used to circumvent filters, checks and more.
Affected packages (2)
- Alpine/curlfrom 0, < 7.80.0-r2
- Debian/curlfrom 0, < 7.83.1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |