CVE-2025-57814

request-filtering-agent SSRF Bypass via HTTPS Requests

Published Aug 25, 2025 CVSS 4.0 · 5.5 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-25760 request-filtering-agent SSRF Bypass via HTTPS Requests to 127.0.0.1
Github GHSA Github GHSA GHSA-pw25-c82r-75mm request-filtering-agent SSRF Bypass via HTTPS Requests to 127.0.0.1
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Azu
Azu request-filtering-agent
Vendors & Products Azu
Azu request-filtering-agent
Type Values Removed Values Added
Description 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.
Title request-filtering-agent SSRF Bypass via HTTPS Requests
Weaknesses CWE-918
References
Metrics cvssV4_0

{'score': 5.5, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 26, 2025, 2:39 PM
Reserved
Aug 20, 2025, 2:30 PM
Status
Deferred
Published
Aug 25, 2025, 10:15 PM
Modified
Jun 17, 2026, 9:43 AM