CVE-2026-77825CWE-22path-traversal

CVE-2026-77825

Medium · published September 24, 2026

CVSS v3.1
4.9
EPSS
0%
Percentile
23.3
In the wild
Unconfirmed
What it is

IBM ContextForge MCP Gateway 1.0.0 through 1.0.8 was vulnerable to path traversal in its Admin API log-download endpoint (`GET /v1/admin/logs/file`). The path confinement check uses `str.startswith()` rather than proper boundary validation, allowing an authenticated admin to read `.log`, `.jsonl`, and `.json` files outside the configured `LOG_FOLDER` by supplying a filename that resolves into a sibling directory whose absolute path shares the log directory's string prefix.

The record
Technical detail
CVSS v3.1
4.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00316 · 23.3th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-09-24T19:17Z
Affected products (1)
ProductVersionsFixed in
ibm/contextforge≥ 1.0.0, < 1.0.91.0.9
References (1)
https://www.ibm.com/support/pages/node/7289314 · [email protected]
EPSS history
Timeline
  • 26 SEP 03:26Z
    EPSS moved — → 0%
    epss
  • 24 SEP 14:21Z
    IBM ContextForge MCP Gateway is affected by path traversal
    cvelistv5