HAProxy known bugs for version v3.2.0 (maintenance branch 3.2) : 11

This version (3.2.0) is a release belonging to maintenance branch 3.2 whose latest version is 3.2.1. 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.

Quick links

full changelog for 3.2 : here
browse history for 3.2 : here

Other versions in the same branch

This branch contains the following releases :

Date Version Comment

2025-06-11 3.2.1 ⇐ last

2025-05-28 3.2.0 ⇐ yours

Date	Version	Comment
2025-06-11	3.2.1	⇐ last
2025-05-28	3.2.0	⇐ yours

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 :

MINOR: the bug presents a limited impact and can easily be mitigated ; users rarely upgrade just for these ones ;
MEDIUM: the bug can cause some undesired behaviour and may require some tricky configuration changes to avoid hitting it ; users normally upgrade to get rid of them, or temporarily disable a functionality.
MAJOR: the bug affects short term reliability and cannot easily be worked around without a significant performance penalty or without a significant functional loss ; such bugs don't stay long in the queue without a release and users must plan an upgrade as soon as possible ;
CRITICAL: this one very rarely happens ; it indicates a short-term reliability or security issue for which there is no workaround. A release will be emitted for this fix even if it's alone and users are urged to upgrade immediately. Some distro maintainers might have been informed in advance in order to agree on a coordinated release date.

Total known bugs in this version by category :

Total CRITICAL MAJOR MEDIUM MINOR

11 0 1 3 7

Total	CRITICAL	MAJOR	MEDIUM	MINOR
11	0	1	3	7

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

Merge date Subject - Severity (minor, medium, major, critical)

2025-06-13 BUG/MINOR: http-ana: Properly handle keep-query redirect option if no QS

2025-06-13 BUG/MINOR: config/server: reject QUIC addresses

2025-06-11 BUG/MINIR: h1: Fix doc of 'accept-unsafe-...-request' about URI parsing

2025-06-11 BUG/MEDIUM: fd: Use the provided tgid in fd_insert() to get tgroup_info

2025-06-11 BUG/MINOR: quic: Missing SSL session object freeing

2025-06-11 BUG/MINOR: config: fix arg number reported on empty arg warning

2025-06-11 BUG/MINOR: config: emit warning for empty args only in discovery mode

2025-06-11 BUG/MEDIUM: cli: Properly parse empty lines and avoid crashed

2025-06-11 BUG/MINOR: mux-spop: Fix null-pointer deref on SPOP stream allocation failure

2025-06-11 BUG/MEDIUM: check: Requeue healthchecks on I/O events to handle check timeout

2025-06-11 BUG/MAJOR: leastconn: Protect tree_elt with the lbprm lock

Merge date	Subject - Severity (minor, medium, major, critical)
2025-06-13	BUG/MINOR: http-ana: Properly handle keep-query redirect option if no QS
2025-06-13	BUG/MINOR: config/server: reject QUIC addresses
2025-06-11	BUG/MINIR: h1: Fix doc of 'accept-unsafe-...-request' about URI parsing
2025-06-11	BUG/MEDIUM: fd: Use the provided tgid in fd_insert() to get tgroup_info
2025-06-11	BUG/MINOR: quic: Missing SSL session object freeing
2025-06-11	BUG/MINOR: config: fix arg number reported on empty arg warning
2025-06-11	BUG/MINOR: config: emit warning for empty args only in discovery mode
2025-06-11	BUG/MEDIUM: cli: Properly parse empty lines and avoid crashed
2025-06-11	BUG/MINOR: mux-spop: Fix null-pointer deref on SPOP stream allocation failure
2025-06-11	BUG/MEDIUM: check: Requeue healthchecks on I/O events to handle check timeout
2025-06-11	BUG/MAJOR: leastconn: Protect tree_elt with the lbprm lock

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