CVE-2026-42175
requests-hardened is Vulnerable to Server-Side Request Forgery
描述
The SSRF protection in `requests-hardened` prior to version 1.2.1 fails to block IP addresses within the RFC 6598 Shared Address Space (`100.64.0.0/10`). An attacker who can supply arbitrary URLs to `requests-hardened` could exploit this gap to access internal services hosted within `100.64.0.0/10`. This is for example relevant in environments such as AWS EKS where `100.64.0.0/10` is commonly used as the default pod CIDR. The impact is environment-dependent, deployments that utilize the affected CIDR range for internal networking are exposed to SSRF bypass, while others may not be affected. The issue is resolved in version 1.2.1 by extending the IP filtering logic to explicitly block the RFC 6598 range in addition to standard private addresses, as well as blocking all other reserved addresses (such as multicast) to prevent the re-occurrence of similar issues. Version 1.2.1 is now blocking the following CIDRs: - `192.88.99.0/24` - 6to4 relay anycast - `100.64.0.0/10` - CG-NAT - `5f00::/16` - IPv6 Segment Routing - `64:ff9b::/96` - used for IPv6 & IPv4 translation (NAT64) - `2001:20::/28` - ORCHIDv2 (overlay identifiers) - `224.0.0.0/4` - multicast - `ff00::/8` - multicast ## Resources - https://github.com/python/cpython/issues/119812 - https://github.com/saleor/requests-hardened/commit/b7403f88d3b3689e57435b75b51691a160aaeef5 - the fix itself - https://github.com/saleor/requests-hardened/commit/a266b3958bb142bca515b3c230fdea19fbda327c - follow up, adding additional support for outdated Python versions (`3.11.9` and `3.10.11` instead of only `3.11.15` and `3.10.20`) - https://github.com/saleor/requests-hardened/releases/tag/v1.2.1
如何修補 CVE-2026-42175
要修補 CVE-2026-42175,請將受影響套件升級到下列已修補版本。
- —升級至 1.2.1 或更新版本
CVE-2026-42175 正在被利用嗎?
低 — EPSS 為 0.0%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 1.2.1