HAProxy known bugs for version v3.2.15 (maintenance branch 3.2) :  95 

This version (3.2.15) is a release belonging to maintenance branch 3.2 whose latest version is 3.2.17. If your version is not the last one in the maintenance branch, you are missing fixes for known bugs, and by not updating you are needlessly taking the responsibility for the risk of unexpected service outages and exposing your web site to possible security issues.

The HAProxy development team takes a great care of maintaining stable versions so that all users can apply bug fixes without having to take the risk of upgrading to a new branch. In turn users are expected to apply the fixes when the development team estimates that they were worth being backported to stable branches.

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Other versions in the same branch

This branch contains the following releases :

DateVersionComment
2026-04-303.2.17 ⇐ last
2026-04-233.2.16 
2026-03-193.2.15 ⇐ yours
2026-03-093.2.14 
2026-02-193.2.13 
2026-02-123.2.12 
2026-01-293.2.11 
2025-12-183.2.10 
2025-11-213.2.9 
2025-11-073.2.8 
2025-10-233.2.7 
2025-10-033.2.6 
2025-09-233.2.5 
2025-08-133.2.4 
2025-07-093.2.3 
2025-07-023.2.2 
2025-06-113.2.1 
2025-05-283.2.0 

Known bugs affecting this version, and already fixed in the maintenance branch

These fixes have already been queued for a more recent 3.2 version. Some of them might have already been released in a more recent version than yours, and other ones might still be pending in the maintenance branch for a future release. The list may be empty if you're already on the latest version and no new fix was backported.

Bugs are almost always tagged with a severity (some people forget the severity tag when the bug is minor). The following severities are used :

Total known bugs in this version by category :

TotalCRITICALMAJORMEDIUMMINOR
95 0 5 25 65

Click on the subjects below to get the full description of the bug :

Merge dateSubject - Severity (minor, medium, major, critical)
2026-04-30BUG/MINOR: acme: skip auth/challenge steps when newOrder returns a certificate
2026-04-30BUG/MEDIUM: acme: fix segfault on newOrder with empty authorizations
2026-04-29BUG/MINOR: http-htx: Don't normalize emtpy path for OPTIONS requests
2026-04-29BUG/MEDIUM: mux-fcgi: Properly handle full buffer for FCGI_PARAM record
2026-04-29BUG/MINOR: payload: prevent integer overflow in distcc token parsing
2026-04-29BUG/MINOR: payload: validate minimum keyshare_len in smp_fetch_ssl_keyshare_groups
2026-04-29BUG/MINOR: fix various typos and spelling mistakes in user-visible messages
2026-04-29BUG/MEDIUM: tasks: Do not loop in task_schedule() if a task is running
2026-04-29BUG/MAJOR: mux-h1: Deal with true 64-bits integer to emit chunks size
2026-04-29BUG/MEDIUM: http-htx: Loop on full host value during scheme based normalization
2026-04-29BUG/MEDIUM: http-htx: Don't use data from HTX message to update authority
2026-04-29BUG/MAJOR: http-htx: Store new host in a chunk for scheme-based normalization
2026-04-29BUG/MINOR: http_ana: use scf to report term_evts in http_wait_for_request()
2026-04-29BUG/MEDIUM: mux_h1: fix stack buffer overflow in h1_append_chunk_size()
2026-04-29BUG/MINOR: peers: fix wrong flag reported twice for dump_flags
2026-04-29BUG/MINOR: peers: fix logical "and" when checking for local in PEER_APP_ST_STARTING
2026-04-29BUG/MINOR: sample: fix NULL strm dereference in sample_conv_when
2026-04-29BUG/MINOR: sample: fix memory leak in check_when_cond() when ACL is not found
2026-04-29BUG/MINOR: tools: free previously allocated strings on strdup failure in backup_env()
2026-04-29BUG/MINOR: tools: fix memory leak in indent_msg() on out of memory
2026-04-29BUG/MINOR: tools: my_memspn/my_memcspn wrong cast causing incorrect byte reading
2026-04-29BUG/MINOR: ssl: fix memory leaks on realloc failure in ssl_ckch.c
2026-04-29BUG/MINOR: tcpcheck: Allow connection reuse without prior traffic
2026-04-23BUG/MEDIUM: mux-h1: Force close mode for bodyless message announcing a C-L
2026-04-23BUG/MAJOR: mux-h2: detect incomplete transfers on HEADERS frames as well
2026-04-23BUG/MINOR: debug: properly mark the entire libs archive read-only
2026-04-23BUG/MINOR: compression: properly disable request when setting response
2026-04-23BUG/MINOR: mux-h1: Fix test to skip trailers from chunked messages
2026-04-23BUG/MINOR: mux-h1: Fix condition to send null-chunk for bodyless message
2026-04-23BUG/MINOR: log: also wait for the response when logging response headers
2026-04-23BUG/MINOR: H2: Don't forget to free shared_rx_bufs on failure
2026-04-23BUG/MINOR: h2: Don't look at the exclusive bit for PRIORITY frame
2026-04-23BUG/MINOR: h2: make tune.h2.log-errors actually work
2026-04-23BUG/MEDIUM: tasks: Make sure we don't schedule a task already running
2026-04-23BUG/MINOR: mux-h2: count a proto error when rejecting a stream on parsing error
2026-04-23BUG/MINOR: mux-h2: count a protocol error when failing to parse a trailer
2026-04-23BUG/MAJOR: sched: protect task->expire on 32-bit platforms
2026-04-21BUG/MINOR: sample: adjust dependencies for channel output bytes counters
2026-04-21BUG/MINOR: log: consider format expression dependencies to decide when to log
2026-04-17BUG/MINOR: task: fix uninitialised read in run_tasks_from_lists()
2026-04-17BUG/MEDIUM: mux-h2: ignore conn->owner when deciding if a connection is dead
2026-04-17BUG/MEDIUM: peers: trash of expired entries delayed after fullresync
2026-04-17BUG/MINOR: acme: don't pass NULL into format string
2026-04-17BUG/MEDIUM: htx: Don't count delta twice when block value is replaced
2026-04-17BUG/MEDIUM: htx: Fix function used to change part of a block value when defrag
2026-04-17BUG/MEDIUM: cli: Properly handle too big payload on a command line
2026-04-17BUG/MINOR: log: Fix error message when using unavailable fetch in logfmt
2026-04-17BUG/MINOR: ot: fixed wrong NULL check in flt_ot_parse_cfg_group()
2026-04-10BUG/MINOR: hlua: fix use-after-free of HTTP reason string
2026-04-10BUG/MEDIUM: mux-fcgi: prevent record-length truncation with large bufsize
2026-04-10BUG/MINOR: sample: fix info leak in regsub when exp_replace fails
2026-04-10BUG/MEDIUM: samples: Fix handling of SMP_T_METH samples
2026-04-10BUG/MINOR: spoe: fix pointer arithmetic overflow in spoe_decode_buffer()
2026-04-10BUG/MINOR: resolvers: fix memory leak on AAAA additional records
2026-04-10BUG/MAJOR: slz: always make sure to limit fixed output to less than worst case literals
2026-04-10BUG/MINOR: peers: fix OOB heap write in dictionary cache update
2026-04-10BUG/MINOR: hlua: fix format-string vulnerability in Patref error path
2026-04-10BUG/MINOR: hlua: fix stack overflow in httpclient headers conversion
2026-04-10BUG: hlua: fix stack overflow in httpclient headers conversion
2026-04-10BUG/MEDIUM: jwt: fix heap overflow in ECDSA signature DER conversion
2026-04-10BUG/MEDIUM: payload: validate SNI name_len in req.ssl_sni
2026-04-10BUG/MINOR: http-act: fix a typo in the "pause" action error message
2026-04-10BUG/MEDIUM: mux-h1: Disable 0-copy forwarding when draining the request
2026-04-10BUG/MINOR: cfgcond: fail cleanly on missing argument for "feature"
2026-04-10BUG/MINOR: cfgcond: always set the error string on openssl_version checks
2026-04-10BUG/MINOR: cfgcond: properly set the error pointer on evaluation error
2026-04-10BUG/MINOR: quic: fix documentation for transport params decoding
2026-04-10BUG/MINOR: tcpcheck: Use tcpcheck context for expressions parsing
2026-04-10BUG/MINOR: tcpcheck: Don't enable http_needed when parsing HTTP samples
2026-04-10BUG/MINOR: tcpcheck: Remove unexpected flag on tcpcheck rules for httchck option
2026-04-10BUG/MEDIUM: mux-h1: Don't set MSG_MORE on bodyless responses forwarded to client
2026-04-10BUG/MEDIUM: map/cli: map/acl commands warn when accessed without admin level
2026-04-10BUG/MEDIUM: ssl/ocsp: ocsp commands warn when accessed without admin level
2026-04-10BUG/MEDIUM: ssl/cli: tls-keys commands warn when accessed without admin level
2026-03-31BUG/MINOR: stconn: Always declare the SC created from healthchecks as a back SC
2026-03-31BUG/MINOR: quic: close conn on packet reception with incompatible frame
2026-03-31BUG/MINOR: acme: fix task allocation leaked upon error
2026-03-31BUG/MEDIUM: acme: skip doing challenge if it is already valid
2026-03-31BUG/MINOR: http-ana: Only consider client abort for abortonclose
2026-03-31BUG/MINOR: config: Properly test warnif_misplaced_* return values
2026-03-31BUG/MINOR: acme: permission checks on the CLI
2026-03-23BUG/MINOR: acme/cli: fix argument check and error in 'acme challenge_ready'
2026-03-23BUG/MINOR: acme: replace atol with len-bounded __strl2uic() for retry-after
2026-03-23BUG/MINOR: acme: free() DER buffer on a2base64url error path
2026-03-23BUG/MEDIUM: spoe: Acquire context buffer in applet before consuming a frame
2026-03-23BUG/MINOR: acme: fix incorrect number of arguments allowed in config
2026-03-23BUG/MINOR: acme: wrong labels logic always memprintf errmsg
2026-03-23BUG/MINOR: acme: acme_ctx_destroy() leaks auth->dns
2026-03-23Revert "BUG/MEDIUM: mux-h2: make sure to always report pending errors to the stream"
2026-03-23BUG/MINOR: acme/cli: wrong argument check in 'acme renew'
2026-03-23BUG/MINOR: acme: wrong error when checking for duplicate section
2026-03-23BUG/MINOR: acme: leak of ext_san upon insertion error
2026-03-23BUG/MEDIUM: acme: fix multiple resource leaks in acme_x509_req()
2026-03-23BUG/MINOR: qpack: fix 62-bit overflow and 1-byte OOB reads in decoding
2026-03-23BUG/MINOR: sock: adjust accept() error messages for ENFILE and ENOMEM
2026-03-23BUG/MINOR: mworker: fix sort order of mworker_proc in 'show proc'

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