GHSA-hr4r-fwpv-c95j

Suggest an improvement
Source
https://github.com/advisories/GHSA-hr4r-fwpv-c95j
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-hr4r-fwpv-c95j/GHSA-hr4r-fwpv-c95j.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-hr4r-fwpv-c95j
Aliases
Downstream
CGA (4)
Published
2026-05-11T18:31:44Z
Modified
2026-09-10T03:51:06Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
  • 7.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
pgAdmin 4 File Manager has symbolic-link path traversal
Details

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.

Database specific
{
    "cwe_ids":  [
        "CWE-61"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-05-18T14:56:48Z",
    "nvd_published_at":  "2026-05-11T16:17:39Z",
    "severity":  "HIGH"
}
References

Affected packages

PyPI / pgadmin4

Package

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
9.15

Affected versions

4.*
4.20
4.22
4.23
4.24
4.25
4.26
4.27
4.28
4.29
4.30
5.*
5.0
5.1
5.2
5.3
5.4
5.5
5.6
5.7
6.*
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
6.10
6.11
6.12
6.13
6.14
6.15
6.16
6.17
6.18
6.19
6.20
6.21
7.*
7.0
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
8.*
8.0
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
8.10
8.11
8.12
8.13
8.14
9.*
9.0
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
9.10
9.11
9.12
9.13
9.14

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-hr4r-fwpv-c95j/GHSA-hr4r-fwpv-c95j.json"