CVE-2026-42175 requests-hardened: Server-Side Request Forgery (SSRF) in requests-hardened RFC 6598

requests-hardened is a library that overrides the default behaviors of the requests library, and adds new security features. Prior to , the SSRF protection in requests-hardened fails to block IP addresses within the RFC 6598 Shared Address Space 100.64.0.0/10. An attacker who can supply arbitrary...

CVE-2026-42175

The CVE-2026-42175 entry concerns the requests-hardened library, whose SSRF protection failed to block addresses in RFC 6598 (100.64.0.0/10). Affected behavior: an attacker able to supply arbitrary URLs could reach internal services within 100.64.0.0/10 in environments using that CIDR (e.g., AWS ...