CVE Explorer
CVE-2025-6515
The MCP SSE endpoint in oatpp-mcp returns an instance pointer as the session ID, which is not unique nor cryptographically secure. This allows network attackers with access to the oatpp-mcp server to guess future session IDs and hijack legitimate client MCP sessions, returning malicious responses from the oatpp-mcp server.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"oatpp-mcp","vendor":"oatpp","versions":[{"status":"affected","version":"0","versionType":"cpe"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:697e87598977aa00a6d36869ef67eed1935ca61214537ffcf849e06d31a18149 · sha256:8a23c1132971201c… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.8,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:697e87598977aa00a6d36869ef67eed1935ca61214537ffcf849e06d31a18149 · sha256:8a23c1132971201c… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-330","description":"CWE-330 Use of Insufficiently Random Values","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:697e87598977aa00a6d36869ef67eed1935ca61214537ffcf849e06d31a18149 · sha256:8a23c1132971201c… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"tags":["third-party-advisory"],"url":"https://research.jfrog.com/vulnerabilities/oatpp-mcp-prompt-hijacking-jfsa-2025-001494691/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:697e87598977aa00a6d36869ef67eed1935ca61214537ffcf849e06d31a18149 · sha256:8a23c1132971201c… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.