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request-filtering-agent SSRF Bypass via HTTPS Requests

Type: advisorySources: OSV

request-filtering-agent is an http(s).Agent implementation that blocks requests to Private/Reserved IP addresses. Versions 1.x.x and earlier contain a vulnerability where HTTPS requests to 127.0.0.1 bypass IP address filtering, while HTTP requests are correctly blocked. This allows attackers to potentially access internal HTTPS services running on localhost, bypassing the library's SSRF protection. The vulnerability is particularly dangerous when the application accepts user-controlled URLs and internal services are only protected by network-level restrictions. This vulnerability has been fixed in request-filtering-agent version 2.0.0. Users should upgrade to version 2.0.0 or later.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2025-57814
Confirmed fixed CVEs
Not specified
Updated in this feed
7 Nov 2026, 15:52 UTC · Revision 1

Source evidence

request-filtering-agent SSRF Bypass via HTTPS Requests

core-osv · Original source

Published 25 Aug 2025, 21:48 UTC

request-filtering-agent is an http(s).Agent implementation that blocks requests to Private/Reserved IP addresses. Versions 1.x.x and earlier contain a vulnerability where HTTPS requests to 127.0.0.1 bypass IP address filtering, while HTTP requests are correctly blocked. This allows attackers to potentially access internal HTTPS services running on localhost, bypassing the library's SSRF protection. The vulnerability is particularly dangerous when the application accepts user-controlled URLs and internal services are only protected by network-level restrictions. This vulnerability has been fixed in request-filtering-agent version 2.0.0. Users should upgrade to version 2.0.0 or later.

osv:CVE-2025-57814
Complete source record
{
  "id": "864479160ac6feead8fc811ec7fb71881a3d5769a672c6ca234ffa737a409e7e",
  "url": "https://osv.dev/vulnerability/CVE-2025-57814",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "request-filtering-agent SSRF Bypass via HTTPS Requests",
    "summary": "request-filtering-agent is an http(s).Agent implementation that blocks requests to Private/Reserved IP addresses. Versions 1.x.x and earlier contain a vulnerability where HTTPS requests to 127.0.0.1 bypass IP address filtering, while HTTP requests are correctly blocked. This allows attackers to potentially access internal HTTPS services running on localhost, bypassing the library's SSRF protection. The vulnerability is particularly dangerous when the application accepts user-controlled URLs and internal services are only protected by network-level restrictions. This vulnerability has been fixed in request-filtering-agent version 2.0.0. Users should upgrade to version 2.0.0 or later.",
    "evidence": "osv:CVE-2025-57814",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2025-57814",
      "aliases": [
        "CVE-2025-57814",
        "GHSA-pw25-c82r-75mm"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:P"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/azu/request-filtering-agent",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6e8455e6b229a9ba74f5d9f25ebd3b7b3e722a53"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.0.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.1.2",
            "v1.1.0",
            "v1.0.7",
            "v1.0.6",
            "v1.0.5",
            "1.0.4",
            "1.0.3",
            "1.0.2",
            "1.0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-57814.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:51.194102251Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/57xxx/CVE-2025-57814.json",
        "https://github.com/azu/request-filtering-agent/security/advisories/GHSA-pw25-c82r-75mm",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-57814",
        "https://github.com/azu/request-filtering-agent-https127-test"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-918"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/57xxx/CVE-2025-57814.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-57814",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 519804,
  "published_at": "2025-08-25T21:48:09.78+00:00"
}