Description
Symbolic-link path traversal (CWE-61, CWE-22) in pgAdmin 4 File Manager.
check_access_permission used os.path.abspath, which resolves '..' but does not resolve symbolic links, while the subsequent kernel write follows symlinks. An authenticated user could plant a symbolic link inside their own storage directory pointing outside it and induce pgAdmin to write to any path reachable by the pgAdmin process.
Fix switches the access check to os.path.realpath for both source and destination, and adds an _open_upload_target helper that opens the target with O_NOFOLLOW (mode 0o600) to close the leaf-component TOCTOU between the access check and the open. File mode is hardened from 0o644 to 0o600.
This issue affects pgAdmin 4: before 9.15.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| pgadmin.org | pgAdmin 4 | < 9.15 | 9.15 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | pgadmin4 | 9.17-1.1 | openSUSE-SU-2026:11508-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | pgadmin4 | < 9.15 | 9.15 | GHSA-hr4r-fwpv-c95j |
Advisories 2
- WID-SEC-2026-1462 pgAdmin: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 16, 2026
- openSUSE-SU-2026:11508-1 pgadmin4-9.17-1.1 on GA media SUSE / openSUSE Security Updates · Aug 14, 2026
References
- https://github.com/pgadmin-org/pgadmin4/issues/9902 issue-tracking