FKIE_CVE-2026-42175

Vulnerability from fkie_nvd - Published: 2026-05-12 18:17 - Updated: 2026-05-13 18:24
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Summary
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 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. This vulnerability is fixed in .
References
security-advisories@github.comhttps://github.com/saleor/requests-hardened/commit/a266b3958bb142bca515b3c230fdea19fbda327c
security-advisories@github.comhttps://github.com/saleor/requests-hardened/commit/b7403f88d3b3689e57435b75b51691a160aaeef5
security-advisories@github.comhttps://github.com/saleor/requests-hardened/releases/tag/v1.2.1
security-advisories@github.comhttps://github.com/saleor/requests-hardened/security/advisories/GHSA-vh75-fwv3-pqrh
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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 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. This vulnerability is fixed in ."
    }
  ],
  "id": "CVE-2026-42175",
  "lastModified": "2026-05-13T18:24:31.310",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 4.2,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-05-12T18:17:24.073",
  "references": [
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/saleor/requests-hardened/commit/a266b3958bb142bca515b3c230fdea19fbda327c"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/saleor/requests-hardened/commit/b7403f88d3b3689e57435b75b51691a160aaeef5"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/saleor/requests-hardened/releases/tag/v1.2.1"
    },
    {
      "source": "security-advisories@github.com",
      "url": "https://github.com/saleor/requests-hardened/security/advisories/GHSA-vh75-fwv3-pqrh"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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