CVE-2026-38924 (GCVE-0-2026-38924)
Vulnerability from cvelistv5 – Published: 2026-09-14 00:00 – Updated: 2026-09-14 02:51 Disputed
VLAI
EPSS
VEX
Summary
In Oraios AI Serena before 1.0.0, the listen address of the MCP server in HTTP mode is 0.0.0.0. NOTE: the Supplier observed that 0.0.0.0 was a "potential security hazard" but the Serena documentation, at the time of the issue report proposing 127.0.0.1 instead of 0.0.0.0, recommended "use a sandboxed environment for running Serena."
Severity
CWE
- CWE-669 - Incorrect Resource Transfer Between Spheres
Assigner
References
Impacted products
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}
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"metrics": [
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"baseScore": 2.9,
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"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
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"format": "CVSS",
"scenarios": [
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"problemTypes": [
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"descriptions": [
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"description": "CWE-669 Incorrect Resource Transfer Between Spheres",
"lang": "en",
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"providerMetadata": {
"dateUpdated": "2026-09-14T02:51:28.625Z",
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"shortName": "mitre"
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"references": [
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"url": "https://github.com/oraios/serena/commit/b00ae292ac2d49947506886f44eb1cad7b7d7cd1"
},
{
"url": "https://github.com/oraios/serena/security/advisories/GHSA-m922-r24v-6wff"
},
{
"url": "https://dash.security/blog/cve-2026-38924-unauthenticated-rce-in-the-serena-mcp-server"
},
{
"url": "https://github.com/oraios/serena/compare/v0.1.4...v1.0.0"
},
{
"url": "https://github.com/oraios/serena/commit/a7af5c1f8a9ea27102eac9e72f64dd97dbfefff3"
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"cveMetadata": {
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"cveId": "CVE-2026-38924",
"datePublished": "2026-09-14T00:00:00.000Z",
"dateReserved": "2026-04-06T00:00:00.000Z",
"dateUpdated": "2026-09-14T02:51:28.625Z",
"state": "PUBLISHED"
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"dataType": "CVE_RECORD",
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"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2026-38924\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2026-09-14T03:16:36.893\",\"lastModified\":\"2026-09-14T03:16:36.893\",\"vulnStatus\":\"Received\",\"cveTags\":[{\"sourceIdentifier\":\"cve@mitre.org\",\"tags\":[\"disputed\"]}],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In Oraios AI Serena before 1.0.0, the listen address of the MCP server in HTTP mode is 0.0.0.0. NOTE: the Supplier observed that 0.0.0.0 was a \\\"potential security hazard\\\" but the Serena documentation, at the time of the issue report proposing 127.0.0.1 instead of 0.0.0.0, recommended \\\"use a sandboxed environment for running Serena.\\\"\"}],\"affected\":[{\"source\":\"cve@mitre.org\",\"affectedData\":[{\"vendor\":\"Oraios AI\",\"product\":\"Serena\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"1.0.0\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cve@mitre.org\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N\",\"baseScore\":2.9,\"baseSeverity\":\"LOW\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.4,\"impactScore\":1.4}]},\"weaknesses\":[{\"source\":\"cve@mitre.org\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-669\"}]}],\"references\":[{\"url\":\"https://dash.security/blog/cve-2026-38924-unauthenticated-rce-in-the-serena-mcp-server\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://github.com/oraios/serena/commit/a7af5c1f8a9ea27102eac9e72f64dd97dbfefff3\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://github.com/oraios/serena/commit/b00ae292ac2d49947506886f44eb1cad7b7d7cd1\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://github.com/oraios/serena/compare/v0.1.4...v1.0.0\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://github.com/oraios/serena/security/advisories/GHSA-m922-r24v-6wff\",\"source\":\"cve@mitre.org\"}]}}"
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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