Medium severity · published Sep 24, 2026
CVE-2026-77825
IBM ContextForge MCP Gateway is affected by path traversal
4.9
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 24% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CM
ContextForge MCP Gateway · IBM
1.0.0 through 1.0.8 · source: vendor
CO
Contextforge · Ibm
1.0.0 before 1.0.9 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-77825
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-77825
Patch
https://www.ibm.com/support/pages/node/7289314
More from ContextForge MCP Gateway
9.8
CVE-2026-78573
IBM ContextForge MCP Gateway is affected by use of default credentials
9.6
CVE-2026-77822
IBM ContextForge MCP Gateway is affected by server-side request forgery (DNS rebinding) via the A2A agent invocation endpoint
8.8
CVE-2026-18486
IBM ContextForge MCP Gateway is affected by credential disclosure and privilege escalation via jq filter execution
7.7
CVE-2026-18905
IBM ContextForge MCP Gateway is affected by server-side request forgery via DNS TOCTOU at tool invocation
5.4
CVE-2026-8355
IBM ContextForge MCP Gateway is affected by server-side request forgery