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CVE-2026-76237

Status: DeferredHigh (8.6)—

stigmem-node before 0.9.0a12 contains a broken object level authorization (cross-tenant BOLA) vulnerability in the quarantine review endpoints. On multi-tenant deployments running the opt-in stigmem-plugin-multi-tenant, the list/count queries and _get_quarantined_fact in routes/quarantine.py lacked a tenant_id predicate and the garden lookup was not tenant-scoped, allowing a tenant administrator with only a plain tenant write capability to list, read, and admit or reject quarantined facts belonging to other tenants via the /v1/quarantine endpoints. Default single-tenant deployments are not affected.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

Acceso remoto sin interacción (AV:N, PR:L, UI:N) en endpoints /v1/quarantine. BOLA permite lectura de datos de otros tenants (T1005), manipulación de hechos cuarentenados (T1565.002) y acceso a cuentas ajenas (T1098).

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Privileged Account ManagementNetwork SegmentationDisable or Remove Feature or ProgramVulnerability ScanningUser Account ManagementThreat Intelligence Program

Affected technologies (2)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Stigmem — Stigmem-nodeAIStigmem — Stigmem-plugin-multi-tenantAI

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-76237",
  "cveTags": [],
  "metrics": {
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          "options": [
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              "automatable": "no"
            },
            {
              "technicalImpact": "total"
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          "version": "2.0.3",
          "timestamp": "2026-08-20T15:39:14.779589Z"
        }
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    "cvssMetricV40": [
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        "cvssData": {
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          "version": "4.0",
          "Recovery": "NOT_DEFINED",
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          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "NOT_DEFINED",
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          "vulnIntegrityImpact": "HIGH",
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          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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      "affectedData": [
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          "product": "stigmem-node",
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              "version": "0",
              "lessThan": "0.9.0a12",
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              "version": "0.9.0a12",
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  "published": "2026-08-19T14:17:55.840",
  "references": [
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    {
      "lang": "en",
      "value": "stigmem-node before 0.9.0a12 contains a broken object level authorization (cross-tenant BOLA) vulnerability in the quarantine review endpoints. On multi-tenant deployments running the opt-in stigmem-plugin-multi-tenant, the list/count queries and _get_quarantined_fact in routes/quarantine.py lacked a tenant_id predicate and the garden lookup was not tenant-scoped, allowing a tenant administrator with only a plain tenant write capability to list, read, and admit or reject quarantined facts belonging to other tenants via the /v1/quarantine endpoints. Default single-tenant deployments are not affected."
    }
  ],
  "lastModified": "2026-09-24T20:06:30.133",
  "sourceIdentifier": "disclosure@vulncheck.com"
}