Issues

• Tracked server briefly goes UP while its agent remains DOWN

  haproxy/haproxy#3543 · Filter by author snh opened on Oct 20, 2026

• Broken links in the docs

  haproxy/haproxy#3542 · Filter by author keyral opened on Oct 20, 2026

• bwlim filter keyed by client address: sessions of unreachable clients never leave and sc_conn_io_cb spins at 100 % CPU (3.4.6, 3.4.7)

  2.62.83.03.23.3status: fixedtype: bug
  haproxy/haproxy#3541 · Filter by author olegs2026 opened on Oct 17, 2026
  5

• H1: valid request rejected with 414 when its data end exactly at the end of a full input buffer

  2.62.83.03.23.3status: fixedtype: bug
  haproxy/haproxy#3540 · Filter by author manu-ns opened on Oct 15, 2026
  4

• Dynamic QUIC Retry can become unreachable behind the handshake cap

  haproxy/haproxy#3539 · Filter by author wallace0409 opened on Oct 15, 2026

• Segfault when a backend goes down

  status: feedback requiredtype: bug
  haproxy/haproxy#3538 · Filter by author flyingflo opened on Oct 14, 2026
  3

• map/ACL pattern files: lines longer than 16383 chars are silently split, tune.bufsize is ignored

  status: needs-triagetype: bug
  haproxy/haproxy#3537 · Filter by author dwjang97 opened on Oct 14, 2026

• Reconnecting one peer delays heartbeats to another idle peer

  haproxy/haproxy#3536 · Filter by author snh opened on Oct 13, 2026
  5

  

• Allow dynamic use-server rules in defaults sections (for backends created with add backend ... from)

  haproxy/haproxy#3535 · Filter by author ygkat opened on Oct 13, 2026

• Web service using Server-Sent Events (SSE) is always closed after 30 seconds

  2.62.83.03.23.33.4status: fixedtype: bug
  haproxy/haproxy#3534 · Filter by author cmason3 opened on Oct 12, 2026
  12

  

• DOC: 'normalize-uri' states HAProxy 2.4, should be expanded to 2.4 and newer

  type: feature
  haproxy/haproxy#3533 · Filter by author NickMRamirez opened on Oct 12, 2026

• build failure on Illumos

  type: code-report
  haproxy/haproxy#3531 · Filter by author chipitsine opened on Oct 12, 2026

• Latest Ubuntu Kernel 146 does shutdown happroxy

  status: needs-triagetype: bug
  haproxy/haproxy#3530 · Filter by author GentleRV opened on Oct 11, 2026
  6

• HTTP3 QUIC connection migration to another network

  status: needs-triagetype: bug
  haproxy/haproxy#3529 · Filter by author lawl-lawl opened on Oct 11, 2026
  1

  

• Segfault shortly after start with a mode log backend server udp@... and check without port; haproxy -c accepts the configuration

  3.03.23.33.4devstatus: reviewedtype: bug
  haproxy/haproxy#3528 · Filter by author ssavant2 opened on Oct 9, 2026
  2

• shm-stats-file: backend's own counters alternate between two slots across reloads (frontend and server counters are preserved)

  3.4status: fixedtype: bug
  haproxy/haproxy#3527 · Filter by author ssavant2 opened on Oct 9, 2026
  4

• jwt_verify_cert intermittently returns -5 (JWT_VRFY_UNKNOWN_CERT) for valid tokens under multi-threaded load

  haproxy/haproxy#3526 · Filter by author CarterSmarty opened on Oct 8, 2026
  4

• listener: dequeue_proxy_listeners() livelocks at maxconn with many thread groups

  haproxy/haproxy#3525 · Filter by author brhenc opened on Oct 6, 2026
  1

• patterns: "del map/acl" removes only one of duplicate keys, "clear map/acl @<ver>" may do nothing (3.4 regression)

  haproxy/haproxy#3523 · Filter by author ygkat opened on Oct 6, 2026

• Local stick-table handover aborts after five seconds while progressing

  haproxy/haproxy#3521 · Filter by author brenc opened on Oct 3, 2026

• Peers: releasing a superseded connection clears the replacement alive flag

  haproxy/haproxy#3519 · Filter by author brenc opened on Oct 2, 2026

• Peers: pending local updates suppress heartbeats during full resync

  haproxy/haproxy#3518 · Filter by author brenc opened on Oct 2, 2026

• Multiple peers sections lose stick tables on reload (shared dont_stop state)

  haproxy/haproxy#3517 · Filter by author brenc opened on Oct 2, 2026

• [3.4.x] localpeer without bind results in worker segfault

  3.4status: fixedtype: bug
  haproxy/haproxy#3516 · Filter by author alexandret-ik opened on Sep 29, 2026
  7

• L4 health check reports UP/L4OK for refused connections on macOS (sock_conn_check() trusts a second connect() returning EISCONN)

  haproxy/haproxy#3513 · Filter by author xiote-dev opened on Sep 28, 2026
  4