CVE-2026-115750

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.

CVSS 4.0

6.3CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

3.7CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-25)

CWE

CWE-522

Published

2026-10-23

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

References

• https://github.com/agentfront/mcp-from-openapi/commit/47fb7a655de33958b0c923490ab244343eb5fc44
• https://github.com/agentfront/mcp-from-openapi/pull/42
• https://github.com/agentfront/mcp-from-openapi/releases/tag/v2.9.0
• https://github.com/agentfront/mcp-from-openapi/security/advisories/GHSA-ff5q-5r4v-fw4v
• https://www.vulncheck.com/advisories/mcp-from-openapi-from-2.5.0-before-2.9.0-credential-leak-via-cross-origin-redirects

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