Issues

• curl_multi_socket_action() can wait indefinitely past CURLOPT_SERVER_RESPONSE_TIMEOUT

  curl/curl#23025 · Filter by author qwaz opened on Sep 22, 2026
  3

• IMAP: custom FETCH with multiple body sections silently drops every literal after the first

  curl/curl#23010 · Filter by author sean-rowe opened on Sep 21, 2026
  2

• Negative DNS cache entries become permanent under CURLOPT_DNS_CACHE_TIMEOUT=-1

  libcurl APIname lookup
  curl/curl#22975 · Filter by author SeanPMiller opened on Sep 17, 2026
  7

• automake < 1.16 doesn't properly generate Makefiles for tests

  buildtests
  curl/curl#22958 · Filter by author jay opened on Sep 15, 2026
  1

• IMAP custom FETCH listing classification skips literal boundaries, enabling response desynchronization

  IMAP
  curl/curl#22865 · Filter by author bagder opened on Sep 7, 2026
  1

• SMTP authentication does not fall back to AUTH LOGIN after another advertised mechanism returns 535

  authenticationSMTP
  curl/curl#22832 · Filter by author ohault opened on Sep 4, 2026
  1

• curl CPU usage waiting for input from stdin

  cmdline toolperformanceWindows
  curl/curl#22640 · Filter by author jay opened on Aug 22, 2026
  5

• IMAP: large SEARCH response fails with CURLE_TOO_LARGE instead of returning results

  IMAPknown-issue
  curl/curl#22435 · Filter by author allanvc opened on Jul 29, 2026

• fopen: 0c667188e0 regression — destination file truncated before temp-file rename, symlink target truncated without O_NOFOLLOW

  curl/curl#21610 · Filter by author MegaManSec opened on May 14, 2026
  5