request-filtering-agent SSRF Bypass via HTTPS Requests
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| azu | request-filtering-agent | before 2.0.0 | 2.0.0 | Patch available | CNA |
| — | request-filtering-agent (npm) | before 2.0.0 | 2.0.0 | Patch available | GHSA-pw25-c82r-75mm |
- request-filtering-agent Vendorazu Affected before 2.0.0 Fixed in 2.0.0 Patch available CNA
- request-filtering-agent (npm) Vendor— Affected before 2.0.0 Fixed in 2.0.0 Patch available GHSA-pw25-c82r-75mm
Remediation
- Fix · CNA request-filtering-agent (azu) Fixed in 2.0.0
- Fix · GHSA-pw25-c82r-75mm request-filtering-agent (npm) Fixed in 2.0.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-57814
- 2026-10-03 Alias added: GHSA-pw25-c82r-75mm
References
More azu vulnerabilities
- TI-2026-44989 request-filtering-agent: Synchronous throw from createConnection() for literal private-IP… CVSS 3.1HIGH 7.5
Sources
- CVE-2025-57814 · CVE Program
- CVE-2025-57814 · NVD
- FIRST EPSS
- GHSA-pw25-c82r-75mm · GitHub Advisory Database · CC BY 4.0
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