[Triage] 25.2.0 no longer honors --limit-request-line 0

[crgunn-mantech]

Type

Bug Report

Description

When I upgraded from 25.1.0 to 25.2.0 the server stopped honoring the --limit-request-line 0 command line parameter and started responding with

Bad Request

Request Line is too large (10088 > 8190)

I expected the newer versions to continue to honor the --limit-request-line 0 parameter to mean unlimited.

https://gunicorn.org/reference/settings/#limit_request_line

Steps to Reproduce (for bugs)

1. Create simple app
2. run gunicorn with --limit-request-line 0
3. issue a GET request with a URL over 8190 characters
4. get error message
5. downgrade gunicorn to 25.1.0, repeat, and no error.

Configuration

gunicorn --reload --workers 2 \
--bind 0.0.0.0:$port \
--timeout 1800 \
--graceful-timeout 1800 \
-k gevent \
--worker-connections 100 \
--max-requests 1000 \
--max-requests-jitter 100 \
--keep-alive 60 \
--limit-request-line 0 \
--access-logfile - \
--access-logformat '%(t)s "%(r)s" %(s)s %(b)s' \
--error-logfile - \
app.wsgi

Logs / Error Output

[2026-03-26 21:28:36 +0000] [154] [WARNING] Invalid request from ip=xxx.xxx.xxx.xxx: Request Line is too large (10088 > 8190)

Gunicorn Version

gunicorn (version 25.2.0)

Python Version

Python 3.13.9

Worker Class

gevent

Operating System

debian 13

Additional Context

No response

Checklist

• I have searched existing discussions and issues for duplicates
• I have checked the documentation and FAQ

[benoitc]

fixed in 25.3 thanks!

[crgunn-mantech]

Thank you for fixing it so fast.