An issue was discovered in Squid through 4.13 and 5.x through 5.0.4. Due to improper input validation, it allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by the security controls. This occurs for certain uri_whitespace configuration settings.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25097
Reference (s):
- https://security.netapp.com/advisory/ntap-20210727-0010/
- DEBIAN:DSA-4873
- URL: https://www.debian.org/security/2021/dsa-4873
- FEDORA:FEDORA-2021-76f09062a7
- URL: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O3RYBDMJCPYGOSURWDR3WJTE474UFT77/