CVE-2026-34515: AIOHTTP affected by UNC SSRF/NTLMv2 Credential Theft/Local File Read in static resource handler on Windows

April 1, 2026 (updated April 6, 2026)

On Windows the static resource handler may expose information about a NTLMv2 remote path.

References

github.com/advisories/GHSA-p998-jp59-783m
github.com/aio-libs/aiohttp
github.com/aio-libs/aiohttp/commit/0ae2aa076c84573df83fc1fdc39eec0f5862fe3d
github.com/aio-libs/aiohttp/releases/tag/v3.13.4
github.com/aio-libs/aiohttp/security/advisories/GHSA-p998-jp59-783m
nvd.nist.gov/vuln/detail/CVE-2026-34515

Code Behaviors & Features

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