Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-v7c4-33vf-cqqq
Advisory ID github_osv/GHSA-v7c4-33vf-cqqq
Aliases CVE-2025-11287
Summary MCPHub has an Improper Authorization vulnerability via its handleSseConnection function A vulnerability was identified in samanhappy MCPHub up to 0.9.10. This vulnerability affects the function handleSseConnection of the file src/services/sseService.ts. Such manipulation leads to improper authentication. The attack may be launched remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Status Published
Exploitability 0.5
Weighted Severity 5.0
Risk 2.5
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-287 Improper Authentication
System Score Found at
cvssv4 5.5 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/10/GHSA-v7c4-33vf-cqqq/GHSA-v7c4-33vf-cqqq.json
generic_textual MODERATE
Reference id Reference type URL
https://github.com/samanhappy/mcphub
8 Bug https://github.com/August829/YU1/issues/8
?ctiid.327045 Other https://vuldb.com/?ctiid.327045
CVE-2025-11287 https://nvd.nist.gov/vuln/detail/CVE-2025-11287
?id.327045 Advisory https://vuldb.com/?id.327045
?submit.661170 Advisory https://vuldb.com/?submit.661170
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/10/GHSA-v7c4-33vf-cqqq/GHSA-v7c4-33vf-cqqq.json
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2025-10-07T13:39:15Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2025/11xxx/CVE-2025-11287.json

Source Advisory: vulnrichment/CVE-2025-11287

View SSVC decision tree 
[{'Exploitation': 'poc'},
 {'Automatable': 'yes'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]