PT-2026-40992 · Julia · Curl Jll+1
Published
2026-05-04
·
Updated
2026-05-04
None
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When doing HTTP(S) transfers, libcurl might erroneously use the read callback (
CURLOPT READFUNCTION) to ask for data to send, even when the CURLOPT POSTFIELDS option has been set, if the same handle previously was used to issue a PUT request which used that callback. This flaw may surprise the application and cause it to misbehave and either send off the wrong data or use memory after free or similar in the subsequent POST request. The problem exists in the logic for a reused handle when it is changed from a PUT to a POST. Found an issue in the description? Have something to add? Feel free to write us 👾
Related Identifiers
Affected Products
Curl Jll
Libcurl Jll