CVE-2026-115750
mcp-from-openapi from 2.5.0 before 2.9.0 Credential Leak via Cross-Origin Redirects
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.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| mcp-from-openapi agentfront mcp-from-openapi
npm |
≥ 2.5.0; < 2.9.0 (affected, semver)
Other versions: unaffected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 6.3 medium |
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 | CNA: VulnCheck |
| 3.1 / 3.7 low |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N | CNA: VulnCheck |
Exploit evidence
- https://github.com/agentfront/mcp-from-openapi/security/advisories/GHSA-ff5q-5r4v-fw4v
exploit · ADP: CISA-ADP
References
- https://github.com/agentfront/mcp-from-openapi/security/advisories/GHSA-ff5q-5r4v-fw4vCNA: VulnCheck · vendor-advisory
- https://github.com/agentfront/mcp-from-openapi/pull/42CNA: VulnCheck · issue-tracking, patch
- https://github.com/agentfront/mcp-from-openapi/commit/47fb7a655de33958b0c923490ab244343eb5fc44CNA: VulnCheck · patch
- https://github.com/agentfront/mcp-from-openapi/releases/tag/v2.9.0CNA: VulnCheck · release-notes
- https://www.vulncheck.com/advisories/mcp-from-openapi-from-2.5.0-before-2.9.0-credential-leak-via-cross-origin-redirectsCNA: VulnCheck · third-party-advisory
- https://github.com/agentfront/mcp-from-openapi/security/advisories/GHSA-ff5q-5r4v-fw4vADP: CISA-ADP · exploit
For agents and automation
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Endpoints and access details
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