curl · Issues· 56 open
Open on GitHubLocally synced open issues (discussions stay on GitHub)
- #22975
Negative DNS cache entries become permanent under `CURLOPT_DNS_CACHE_TIMEOUT=-1`
name lookupUpdated Sep 17, 2026 - #22984
curl_easy_perform returns CURLE_SEND_ERROR even if the http/2 request was successful.
HTTP/2not-a-curl-bugUpdated Sep 17, 2026 - #22958
automake < 1.16 doesn't properly generate Makefiles for tests
buildtestsUpdated Sep 15, 2026 - #22865
IMAP custom FETCH listing classification skips literal boundaries, enabling response desynchronization
IMAPUpdated Sep 8, 2026 - #22832
SMTP authentication does not fall back to AUTH LOGIN after another advertised mechanism returns 535
SMTPauthenticationUpdated Sep 4, 2026 - #22640
curl CPU usage waiting for input from stdin
cmdline toolperformanceWindowsUpdated Sep 1, 2026 - #22435
IMAP: large SEARCH response fails with CURLE_TOO_LARGE instead of returning results
known-issueIMAPUpdated Aug 3, 2026 - #21610
fopen: `0c667188e0` regression — destination file truncated before temp-file rename, symlink target truncated without O_NOFOLLOW
Updated Jun 26, 2026