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Fix GH-18634: Show warning when saving session if a pipe character is used in one of the $_SESSION keys #18653

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Merged
merged 4 commits into from
May 26, 2025
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Merged

Fix GH-18634: Show warning when saving session if a pipe character is used in one of the $_SESSION keys #18653

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52f46d7
session: Raise a warning if session variable key contains pipe character
mintopia May 24, 2025
cc17a0a
session: Fix for #18634, Warning on pipe character in session variabl…
mintopia May 25, 2025
05bd596
session: Add newline to end of tests for GH-18634
mintopia May 25, 2025
0ff8487
session: Add details to UPGRADING for the fix for #18634
mintopia May 25, 2025
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1 change: 1 addition & 0 deletions ext/session/session.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1059,6 +1059,7 @@ PS_SERIALIZER_ENCODE_FUNC(php)
PHP_VAR_SERIALIZE_DESTROY(var_hash);
smart_str_free(&buf);
fail = true;
php_error_docref(NULL, E_WARNING, "Failed to write session data. Data contains invalid key \"%s\"", ZSTR_VAL(key));
break;
}
smart_str_appendc(&buf, PS_DELIMITER);
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13 changes: 13 additions & 0 deletions ext/session/tests/gh18634.phpt
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@@ -0,0 +1,13 @@
--TEST--
GH-18634 (Using pipe character in session variable key causes session data to be removed)
--EXTENSIONS--
session
--SKIPIF--
<?php include('skipif.inc'); ?>
--FILE--
<?php
session_start();
$_SESSION['foo|bar'] = 'value';
?>
--EXPECT--
Warning: PHP Request Shutdown: Failed to write session data. Data contains invalid key "foo|bar" in Unknown on line 0
14 changes: 14 additions & 0 deletions ext/session/tests/gh18634_2.phpt
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@@ -0,0 +1,14 @@
--TEST--
GH-18634 (Using pipe character in session variable key causes session data to be removed - explicit session write)
--EXTENSIONS--
session
--SKIPIF--
<?php include('skipif.inc'); ?>
--FILE--
<?php
session_start();
$_SESSION['foo|bar'] = 'value';
session_write_close()
?>
--EXPECTF--
Warning: session_write_close(): Failed to write session data. Data contains invalid key "foo|bar" in %s on line %d
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