Upload of specific encoded content results in 422 #5371

New Issue

OVERLORD · 2026-02-05T10:00:42+03:00

OVERLORD commented

2026-02-05 10:00:42 +03:00

Originally created by @ckbaker10 on GitHub (Jul 22, 2025).

Describe the Bug

Uploading very specific files results in 422, otherwise it succeeds

Similar issues

https://github.com/BookStackApp/BookStack/issues/3223
https://github.com/BookStackApp/BookStack/issues/1488

Steps to Reproduce

Upload the attached file to bookstack to reproduce the error

Don't bother parsing： Just use images for RAG ｜ Morphik Blog (22.7.2025 11：35：40).html.txt

Expected Behaviour

Uploads shouldn't be limited by the file content

Screenshots or Additional Context

No response

Browser Details

Firefox 140.0.4

Exact BookStack Version

v25.05.2

Resolution

I was too quick to submit an issue, it was a php config issue not an issue with bookstack

here is a sample config that works for php8.3, it was probably just a file upload limit conflict that isn't beeing reported properly

[PHP]
engine = On
short_open_tag = Off
precision = 14
output_buffering = 4096
zlib.output_compression = Off
implicit_flush = Off
unserialize_callback_func =
serialize_precision = -1
disable_functions =
disable_classes =
zend.enable_gc = On
zend.exception_ignore_args = On
zend.exception_string_param_max_len = 0
expose_php = Off
max_execution_time = 30
max_input_time = 60
memory_limit = 2G
error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT
display_errors = Off
display_startup_errors = Off
log_errors = On
ignore_repeated_errors = Off
ignore_repeated_source = Off
report_memleaks = On
variables_order = "GPCS"
request_order = "GP"
register_argc_argv = Off
auto_globals_jit = On
post_max_size = 1G
auto_prepend_file =
auto_append_file =
default_mimetype = "text/html"
default_charset = "UTF-8"
doc_root =
user_dir =
enable_dl = Off
file_uploads = On
upload_max_filesize = 100G
max_file_uploads = 20
allow_url_fopen = On
allow_url_include = Off
default_socket_timeout = 60
[CLI Server]
cli_server.color = On
[Date]
[filter]
[iconv]
[imap]
[intl]
[sqlite3]
[Pcre]
[Pdo]
[Pdo_mysql]
pdo_mysql.default_socket=
[Phar]
[mail function]
SMTP = localhost
smtp_port = 25
mail.add_x_header = Off
[ODBC]
odbc.allow_persistent = On
odbc.check_persistent = On
odbc.max_persistent = -1
odbc.max_links = -1
odbc.defaultlrl = 4096
odbc.defaultbinmode = 1
[MySQLi]
mysqli.max_persistent = -1
mysqli.allow_persistent = On
mysqli.max_links = -1
mysqli.default_port = 3306
mysqli.default_socket =
mysqli.default_host =
mysqli.default_user =
mysqli.default_pw =
mysqli.reconnect = Off
[mysqlnd]
mysqlnd.collect_statistics = On
mysqlnd.collect_memory_statistics = Off
[OCI8]
[PostgreSQL]
pgsql.allow_persistent = On
pgsql.auto_reset_persistent = Off
pgsql.max_persistent = -1
pgsql.max_links = -1
pgsql.ignore_notice = 0
pgsql.log_notice = 0
[bcmath]
bcmath.scale = 0
[browscap]
[Session]
session.save_handler = files
session.use_strict_mode = 0
session.use_cookies = 1
session.use_only_cookies = 1
session.name = PHPSESSID
session.auto_start = 0
session.cookie_lifetime = 0
session.cookie_path = /
session.cookie_domain =
session.cookie_httponly =
session.cookie_samesite =
session.serialize_handler = php
session.gc_probability = 0
session.gc_divisor = 1000
session.gc_maxlifetime = 1440
session.referer_check =
session.cache_limiter = nocache
session.cache_expire = 180
session.use_trans_sid = 0
session.sid_length = 26
session.trans_sid_tags = "a=href,area=href,frame=src,form="
session.sid_bits_per_character = 5
[Assertion]
zend.assertions = -1
[COM]
[mbstring]
[gd]
[exif]
[Tidy]
tidy.clean_output = Off
[soap]
soap.wsdl_cache_enabled=1
soap.wsdl_cache_dir="/tmp"
soap.wsdl_cache_ttl=86400
soap.wsdl_cache_limit = 5
[sysvshm]
[ldap]
ldap.max_links = -1
[dba]
[opcache]
opcache.enable=1
opcache.memory_consumption=1024
opcache.validate_timestamps=0
opcache.save_comments=1
opcache.interned_strings_buffer = 250
opcache.jit_buffer_size = 512M
[curl]
[openssl]
[ffi]

Originally created by @ckbaker10 on GitHub (Jul 22, 2025). ### Describe the Bug Uploading very specific files results in 422, otherwise it succeeds Similar issues https://github.com/BookStackApp/BookStack/issues/3223 https://github.com/BookStackApp/BookStack/issues/1488 ### Steps to Reproduce Upload the attached file to bookstack to reproduce the error [Don't bother parsing： Just use images for RAG ｜ Morphik Blog (22.7.2025 11：35：40).html.txt](https://github.com/user-attachments/files/21364226/Don.t.bother.parsing.Just.use.images.for.RAG.Morphik.Blog.22.7.2025.11.35.40.html.txt) ### Expected Behaviour Uploads shouldn't be limited by the file content ### Screenshots or Additional Context _No response_ ### Browser Details Firefox 140.0.4 ### Exact BookStack Version v25.05.2 ### Resolution I was too quick to submit an issue, it was a php config issue not an issue with bookstack here is a sample config that works for php8.3, it was probably just a file upload limit conflict that isn't beeing reported properly ``` [PHP] engine = On short_open_tag = Off precision = 14 output_buffering = 4096 zlib.output_compression = Off implicit_flush = Off unserialize_callback_func = serialize_precision = -1 disable_functions = disable_classes = zend.enable_gc = On zend.exception_ignore_args = On zend.exception_string_param_max_len = 0 expose_php = Off max_execution_time = 30 max_input_time = 60 memory_limit = 2G error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT display_errors = Off display_startup_errors = Off log_errors = On ignore_repeated_errors = Off ignore_repeated_source = Off report_memleaks = On variables_order = "GPCS" request_order = "GP" register_argc_argv = Off auto_globals_jit = On post_max_size = 1G auto_prepend_file = auto_append_file = default_mimetype = "text/html" default_charset = "UTF-8" doc_root = user_dir = enable_dl = Off file_uploads = On upload_max_filesize = 100G max_file_uploads = 20 allow_url_fopen = On allow_url_include = Off default_socket_timeout = 60 [CLI Server] cli_server.color = On [Date] [filter] [iconv] [imap] [intl] [sqlite3] [Pcre] [Pdo] [Pdo_mysql] pdo_mysql.default_socket= [Phar] [mail function] SMTP = localhost smtp_port = 25 mail.add_x_header = Off [ODBC] odbc.allow_persistent = On odbc.check_persistent = On odbc.max_persistent = -1 odbc.max_links = -1 odbc.defaultlrl = 4096 odbc.defaultbinmode = 1 [MySQLi] mysqli.max_persistent = -1 mysqli.allow_persistent = On mysqli.max_links = -1 mysqli.default_port = 3306 mysqli.default_socket = mysqli.default_host = mysqli.default_user = mysqli.default_pw = mysqli.reconnect = Off [mysqlnd] mysqlnd.collect_statistics = On mysqlnd.collect_memory_statistics = Off [OCI8] [PostgreSQL] pgsql.allow_persistent = On pgsql.auto_reset_persistent = Off pgsql.max_persistent = -1 pgsql.max_links = -1 pgsql.ignore_notice = 0 pgsql.log_notice = 0 [bcmath] bcmath.scale = 0 [browscap] [Session] session.save_handler = files session.use_strict_mode = 0 session.use_cookies = 1 session.use_only_cookies = 1 session.name = PHPSESSID session.auto_start = 0 session.cookie_lifetime = 0 session.cookie_path = / session.cookie_domain = session.cookie_httponly = session.cookie_samesite = session.serialize_handler = php session.gc_probability = 0 session.gc_divisor = 1000 session.gc_maxlifetime = 1440 session.referer_check = session.cache_limiter = nocache session.cache_expire = 180 session.use_trans_sid = 0 session.sid_length = 26 session.trans_sid_tags = "a=href,area=href,frame=src,form=" session.sid_bits_per_character = 5 [Assertion] zend.assertions = -1 [COM] [mbstring] [gd] [exif] [Tidy] tidy.clean_output = Off [soap] soap.wsdl_cache_enabled=1 soap.wsdl_cache_dir="/tmp" soap.wsdl_cache_ttl=86400 soap.wsdl_cache_limit = 5 [sysvshm] [ldap] ldap.max_links = -1 [dba] [opcache] opcache.enable=1 opcache.memory_consumption=1024 opcache.validate_timestamps=0 opcache.save_comments=1 opcache.interned_strings_buffer = 250 opcache.jit_buffer_size = 512M [curl] [openssl] [ffi] ```

OVERLORD added the 🐛 Bug label 2026-02-05 10:00:42 +03:00

OVERLORD closed this issue

2026-02-05 10:00:43 +03:00

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Reference: starred/BookStack#5371