Browser subprocess Python env variable isolation fix
Cluster 84841 · agent. Data as of
Nothing open on GitHub. Fix merged in #86371 on 14 Aug 2026. Check it covers your case.
The short answer
- Known?
- Yes. 3 related items grouped here, 1 issue already closed.
- Fix event
- A fix was merged to main in PR #86371. Check it covers your case. No release data is tracked.
- Tracker
- The maintainers' tracker marks this
unresolved. That is separate from the fix event. - Still open
- Nothing open on GitHub.
A bug where browser-use subprocesses crash due to pydantic_core ABI mismatches caused by inherited PYTHONPATH or PYTHONHOME from the parent shell, and corresponding fixes that strip those environment variables before launching the subprocess.
Open issues0
Open PRs0
Fixes on record
-
#86371 fix(browser): strip PYTHONPATH/PYTHONHOME from browser-use CLI subprocess env (salvage #83471)
files:
contributors/emails/[redacted:email],tests/tools/test_browser_use_cli.py,tools/browser_use_cli.py
1 PR closed without merging
From the close comments: superseded by another PR 1
-
#84859 fix(browser): strip parent venv pointers from browser-use subprocess env · superseded by another PR →
#86371
Closed issues · 1
- Closed#84841[Bug] browser-use subprocess crashes with pydantic_core ABI mismatch when parent shell exports PYTHONPATH
How this cluster was grouped
-
Link evidence (
structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference. -
Pairwise link density
0.67: the share of item pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36.1.00means every pair is linked.
Pick up a Lab task
Check whether a fix covers the open issues here, with your own agent. Bring back evidence for maintainers.
Open the LabAt a glance
- Subsystem
- agent
- Merged PRs
- #86371
- Closed issues
- 1
- Attempts
- 1 PR closed without merging
- Fix link checked
- 14 Aug 2026