Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Limit token size to 250 KB #345

Closed
wants to merge 1 commit into from
Closed

Limit token size to 250 KB #345

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 5 additions & 0 deletions jose/jwe.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -76,6 +76,11 @@ def decrypt(jwe_str, key):
>>> jwe.decrypt(jwe_string, 'asecret128bitkey')
'Hello, World!'
"""

# limit the token size to 250 KB
Copy link

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Suggested change
# limit the token size to 250 KB
# limit the token size to 250 KB - when this token is processed by the server, it results in significant memory allocation and processing time during decompression.

if len(jwe_str) > 250 * 1024:
raise JWEError("JWE string exceeds 250 KB")

header, encoded_header, encrypted_key, iv, cipher_text, auth_tag = _jwe_compact_deserialize(jwe_str)

# Verify that the implementation understands and can process all
Expand Down