SSRF via skipped HTTPS direct-IP validation
Published Aug 25, 2025 · Updated Aug 26, 2025
SSRF in request-filtering-agent before 2.0.0 allows remote attackers to access localhost HTTPS services through user-controlled URLs. During TLS setup, RequestFilteringHttpsAgent fails to invoke the connection listener that validates direct IP addresses, so 127.0.0.1 is treated as safe. Exploitation requires an application to accept attacker-controlled URLs and use the library for requests to a localhost HTTPS service.
Summary
What happened
SSRF in request-filtering-agent before 2.0.0 allows remote attackers to access localhost HTTPS services through user-controlled URLs. During TLS setup, RequestFilteringHttpsAgent fails to invoke the connection listener that validates direct IP addresses, so 127.0.0.1 is treated as safe. Exploitation requires an application to accept attacker-controlled URLs and use the library for requests to a localhost HTTPS service.
The record
- CVE
- CVE-2025-57814
- Published
- Aug 25, 2025
- Updated
- Aug 26, 2025
- Vendor
- azu
- Product
- request-filtering-agent
- Classifications
- CWE-918, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 25, 2025CVE publishedPublication date reported by the CVE source.
- Aug 26, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 2.0.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- request-filtering-agent 127.0.0.1 Vulnerability Testfunctional · demonstrated
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Technologies
Your stack
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Your stack
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