# CVE-2026-120204: DeepInfer through 0.1.0 Path Traversal via /profile output_dir Parameter

Status: published. Published: 2026-10-31. Updated: 2026-11-02.

DeepInfer through 0.1.0 contains a path traversal vulnerability in the unauthenticated /profile endpoint that allows remote attackers to create arbitrary directories via the output_dir parameter. Attackers, including cross-site GET requests from an operator's browser, can write chrome trace files to exhaust disk or inodes and use error messages as a filesystem oracle.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/deepseek-ai/DeepInfer/pull/242

## Affected products and versions

- deepseek-ai / DeepInfer (deepinfer): ≥ 0; ≤ 0.1.0 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 6.3 (medium); CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 5.6 (medium); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.43% as of 2026-11-02; percentile 37.25%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-22

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/deepseek-ai/DeepInfer/pull/242 (CNA: VulnCheck; issue-tracking, patch)

- https://github.com/deepseek-ai/DeepInfer/blob/553741557a57df44a46fb3ab72b6aafeaf945337/deepinfer/engine/profile_server.py#L210 (CNA: VulnCheck; technical-description)

- https://github.com/deepseek-ai/DeepInfer (CNA: VulnCheck; product)

- https://www.vulncheck.com/advisories/deepinfer-through-0.1.0-path-traversal-via-profile-output-dir-parameter (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-120204; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-120204; retrieved 2026-11-02; source updated Not reported

Revision: e18b6847d39544242bb163193b569ac0768818566452696b6f656c30eacda011

Canonical: https://y2.dev/cve/CVE-2026-120204

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