bb-plane-fork/apps/api/plane/tests/unit/bg_tasks
sriram veeraghanta 63fac3b8c4
fix: validate redirects in favicon fetching to prevent SSRF (#8858)
* fix: validate redirects in favicon fetching to prevent SSRF

The previous SSRF fix (GHSA-jcc6-f9v6-f7jw) only validated redirects for
the main page URL but not for the favicon fetch path. An attacker could
craft an HTML page with a favicon link that redirects to a private IP,
bypassing the IP validation and leaking internal network data as base64.

Extract a reusable `safe_get()` function that validates every redirect hop
against private/internal IPs and use it for both page and favicon fetches.

Resolves: GHSA-9fr2-pprw-pp9j

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: address PR review feedback for SSRF favicon fix

- Fix off-by-one in redirect limit: only raise RuntimeError when the
  response is still a redirect after MAX_REDIRECTS hops, not when the
  final response is a successful 200
- Return final URL from safe_get() so favicon href resolution uses the
  correct origin after redirects instead of the original URL
- Add unit tests for validate_url_ip and safe_get covering private IP
  blocking, redirect-following, and redirect limit enforcement

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-06 16:04:43 +05:30
..
test_copy_s3_objects.py chore: add copyright (#8584) 2026-01-27 13:54:22 +05:30
test_work_item_link_task.py fix: validate redirects in favicon fetching to prevent SSRF (#8858) 2026-04-06 16:04:43 +05:30