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CVE-2026-104108

Status: DeferredHigh (8.1)—
Severity8.1High · CVSS 3.1
Exploitation probability0.18 %higher than 7% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitNot knownno public code found

FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.23.0, FileRise maps an authenticated OIDC identity to a local account using mutable preferred_username or email claims and does not require email_verified for email-based naming. An attacker who can obtain provider-issued claims colliding with an existing local username can be logged in as that account, including the built-in administrator, even when automatic provisioning is disabled. Exploitability depends on the configured identity provider allowing the colliding claim. This issue is fixed in version 3.23.0.

CVSS

Base score
8.1
Version
3.1
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
0.18 %
Percentile among all scored CVEs
7
Score date
10/20/2026

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.

Vector AV:N/PR:N/UI:N aplica T1190. El texto describe inicio de sesión como otra cuenta local, incluido el administrador, al colisionar claims OIDC no verificados. T1195.002 no encaja.

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 ManagementApplication Developer GuidanceActive Directory ConfigurationVulnerability ScanningUser TrainingUser Account Management

Affected technologies (1)

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

Filerise — FileriseAI

CWEs

References

Show 4 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2026-104108",
  "cveTags": [],
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          "options": [
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              "automatable": "no"
            },
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          ],
          "version": "2.0.3",
          "timestamp": "2026-10-20T02:11:04.392954Z"
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          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "exploitabilityScore": 2.2
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  "published": "2026-10-14T21:17:34.880",
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  "lastModified": "2026-10-20T03:17:12.480",
  "sourceIdentifier": "security-advisories@github.com"
}