AIKIDO-2026-377898
libcurl is vulnerable to Authentication Bypass
37
Low Risk
This Affects:
libcurlTL;DR
Connection reuse for Negotiate authentication ignores the SASL service name. A later request can go out on a connection that was authenticated for a different service on the same server, so the request runs with that other service's authenticated session. The fix includes the service name in the reuse check.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you reuse Negotiate authenticated connections for different services.
Background info
libcurl is vulnerable to Authentication Bypass in versions 7.43.0 - 8.20.0.
How to fix this
Upgrade the libcurl and/or the curl.curl library to the patch version.
Links
GitHub Release
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