CVE-2026-115750

mcp-from-openapi from 2.5.0 before 2.9.0 Credential Leak via Cross-Origin Redirects

Published Oct 23, 2026 CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed
Description
mcp-from-openapi from 2.5.0 before 2.9.0 contains a credential exposure vulnerability that allows attackers to capture Authorization and Cookie headers because safeFetch() forwards them on cross-origin redirects. Attackers controlling a spec host or abusing an open redirect can redirect fromURL() spec requests to their own origin to steal bearer tokens or cookies.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description mcp-from-openapi from 2.5.0 before 2.9.0 contains a credential exposure vulnerability that allows attackers to capture Authorization and Cookie headers because safeFetch() forwards them on cross-origin redirects. Attackers controlling a spec host or abusing an open redirect can redirect fromURL() spec requests to their own origin to steal bearer tokens or cookies.
Title mcp-from-openapi from 2.5.0 before 2.9.0 Credential Leak via Cross-Origin Redirects
First Time appeared Frontmcp
Frontmcp mcp-from-openapi
Weaknesses CWE-522
CPEs cpe:2.3:a:frontmcp:mcp-from-openapi:*:*:*:*:*:*:*:*
Vendors & Products Frontmcp
Frontmcp mcp-from-openapi
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 4, 2026, 8:36 PM
Reserved
Oct 23, 2026, 12:59 PM
Status
Deferred
Published
Oct 23, 2026, 1:17 PM
Modified
Nov 4, 2026, 9:17 PM