AIKIDO-2026-329787
libcurl is vulnerable to Double Free
55
Medium Risk
This Affects:
libcurlTL;DR
SASL authentication with GSASL frees the GSASL context twice and does not clear the pointer between the two frees. The second free() releases the same heap address again and corrupts the heap, which typically crashes the process. The fix clears the pointer after the first free.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and your build uses GSASL for SASL authentication.
Background info
libcurl is vulnerable to Double Free in versions 8.15.0 - 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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