HAProxy known bugs for maintenance branch 3.2 :  10 

This is maintenance branch 3.2 whose latest version is 3.2.10. 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. In short, if you are running any 3.2 version other than 3.2.10, you're running with known bugs.

Quick links

Versions available in this branch

This branch contains the following releases :

DateVersionComment
2025-12-183.2.10 ⇐ last
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 

Fixes for known bugs pending in this branch since the last release (3.2.10)

These fixes have already been queued for the next 3.2 release but no version was released with them yet. Note that fixes are backported several at a time from the development branch to maintenance branches, and the absence of a fix here doesn't mean none will be issued soon.

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 the latest version of this branch by category :

TotalCRITICALMAJORMEDIUMMINOR
10 0 0 5 5

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

Merge dateSubject - Severity (minor, medium, major, critical)
2026-01-09BUG/MINOR: cli/stick-tables: argument to "show table" is optional
2026-01-09BUG/MINOR: cfgparse: wrong section name upon error
2026-01-09BUG/MEDIUM: mworker: can't use signals after a failed reload
2026-01-09BUG/MINOR: backend: inspect request not response buffer to check for TFO
2026-01-09BUG/MINOR: backend: fix the conn_retries check for TFO
2026-01-09BUG/MEDIUM: ssl: Don't resume session for check connections
2026-01-09BUG/MEDIUM: ssl: Don't reuse TLS session if the connection's SNI differs
2026-01-09BUG/MINOR: sock-inet: ignore conntrack for transparent sockets on Linux
2026-01-07BUG/MEDIUM: stconn: Don't report abort from SC if read0 was already received
2026-01-07BUG/MEDIUM: http-ana: Properly detect client abort when forwarding response (v2)

Known bugs fixed in the development branch after the last commit in this branch

It is important to understand that not all of these commits are necessarily relevant to this version, but clicking on them will show the bug description. All fixes are made first in the development branch and then backported to the maintenance branches. This ensures no fix is lost when upgrading. If a fix was marked for backporting to this branch and is not there yet, it's likely that it is still missing. Do not hesitate to ask on the haproxy mailing list if you feel like a fix has been skipped.

DateSubject
2026-01-22BUG/MEDIUM: debug: only dump Lua state when panicking
2026-01-22BUG/MINOR: proxy: fix deinit crash on defaults with duplicate name
2026-01-21BUG/MEDIUM: mux-quic: prevent BUG_ON() on aborted uni stream close
2026-01-21BUG/MEDIUM: ssl: fix generate-certificates option when SNI greater than 64bytes
2026-01-21BUG/MEDIUM: ssl: fix error path on generate-certificates
2026-01-19BUG/MEDIUM: log: parsing log-forward options may result in segfault
2026-01-19BUG/MEDIUM: promex: server iteration may rely on stale server
2026-01-19BUG/MINOR: server: ensure server is detached from proxy list before being freed
2026-01-16BUG/MINOR: cfgparse: fix "default" prefix parsing
2026-01-15BUG/MINOR: proxy: free persist_rules
2026-01-15BUG/MEDIUM: queues: Fix arithmetic when feeling non_empty_tgids
2026-01-14BUG/MINOR: http_act: fix deinit performed on uninitialized lf_expr in release_http_map()
2026-01-13BUG/MEDIUM: quic: fix ACK ECN frame parsing
2026-01-13BUG/MEDIUM: threads: Fix binding thread on bind.
2026-01-13BUG/MINOR: net_helper: fix IPv6 header length processing
2026-01-12BUG/MINOR: hlua_fcn: ensure Patref:add_bulk() is given a table object before using it
2026-01-12BUG/MINOR: hlua_fcn: fix broken yield for Patref:add_bulk()
2026-01-12BUG/MINOR: stats-file: Use a 16bits variable when loading tgid

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