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This is a field that is (now) available on instances of `SimpleHTTPRequestHandler`, and which is vulnerable to a header injection attack.
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🟡 Changes recommended
In-place mutations of the header mapping are not modeled, causing missed injection results.
Review effort: Balanced
Findings: 1
Open (1)
What changed in this PR
Models Python 3.15 SimpleHTTPRequestHandler.extra_response_headers as a response-header sink.
Changes:
- Models constructor and attribute assignments.
- Adds framework and header-injection tests.
- Adds a change note.
| File | Description |
|---|---|
Stdlib.qll |
Adds header-write modeling. |
test_extra_response_headers.py |
Tests framework concepts. |
extra_response_headers.py |
Adds injection scenarios. |
HeaderInjection.expected |
Updates generated expectations. |
2026-09-22-python315-http-headers.md |
Documents the analysis improvement. |
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This is a field that is (now) available on instances of
SimpleHTTPRequestHandler, and which is vulnerable to a header injection attack.