Server-side Request Forgery (SSRF) Affecting aiohttp package, versions [,3.13.4)
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- published2 Apr 2026
- disclosed1 Apr 2026
- creditnvn1729
Introduced: 1 Apr 2026
NewCVE-2026-34515 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade aiohttp to version 3.13.4 or higher.
Overview
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) in the static resource handler on Windows. An attacker can extract NTLMv2 credential hashes by accessing specially crafted remote paths, potentially leading to credential theft.