CVE Explorer

CVE-2026-23744

MCPJam inspector is the local-first development platform for MCP servers. Versions 1.4.2 and earlier are vulnerable to remote code execution (RCE) vulnerability, which allows an attacker to send a crafted HTTP request that triggers the installation of an MCP server, leading to RCE. Since MCPJam inspector by default listens on 0.0.0.0 instead of 127.0.0.1, an attacker can trigger the RCE remotely via a simple HTTP request. Version 1.4.3 contains a patch.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e8814e7221bd4fab8e79ef95ccc7254ec1b6f88b713004b1b8b487985957989c

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"inspector","vendor":"MCPJam","versions":[{"status":"affected","version":"<= 1.4.2"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:9c827a38bcaaecc5d05e76f0a3aa77b94843ad1dea34b11ad2579ed4a8b40d6e · sha256:154c585e41d97fa9… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:9c827a38bcaaecc5d05e76f0a3aa77b94843ad1dea34b11ad2579ed4a8b40d6e · sha256:154c585e41d97fa9… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-306","description":"CWE-306: Missing Authentication for Critical Function","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:9c827a38bcaaecc5d05e76f0a3aa77b94843ad1dea34b11ad2579ed4a8b40d6e · sha256:154c585e41d97fa9… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/MCPJam/inspector/commit/e6b9cf9d9e6c9cbec31493b1bdca3a1255fe3e7a","tags":["x_refsource_MISC"],"url":"https://github.com/MCPJam/inspector/commit/e6b9cf9d9e6c9cbec31493b1bdca3a1255fe3e7a"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:9c827a38bcaaecc5d05e76f0a3aa77b94843ad1dea34b11ad2579ed4a8b40d6e · sha256:154c585e41d97fa9… · /containers/cna/references/1

{"name":"https://github.com/MCPJam/inspector/security/advisories/GHSA-232v-j27c-5pp6","tags":["x_refsource_CONFIRM"],"url":"https://github.com/MCPJam/inspector/security/advisories/GHSA-232v-j27c-5pp6"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:9c827a38bcaaecc5d05e76f0a3aa77b94843ad1dea34b11ad2579ed4a8b40d6e · sha256:154c585e41d97fa9… · /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.

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