CVE-2026-82033 (GCVE-0-2026-82033)
Vulnerability from cvelistv5 – Published: 2026-11-04 18:42 – Updated: 2026-11-04 20:32 X_Open Source
VLAI
EPSS
VEX
Title
DeepSeek Harness Unauthenticated RPC Command Execution
Summary
DeepSeek Harness prior to 0.1.2-alpha.2, and specifically commit 3e24087, contains a missing authentication vulnerability in its web profile HTTP and WebSocket RPC control plane, allowing any local process, including those running as a different OS user, to reach unauthenticated session methods such as session.create and session.prompt. Attackers can invoke session.prompt to trigger the agent's bash and filesystem tools, achieve arbitrary command execution as the victim user using their configured model credentials, intercept live session traffic and logs over the event mux stream, and bypass human tool-approval checks via POST /api/respond by matching only rpcId, approvalId, and sessionId values broadcast over the ungated stream.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 20:32 UTC
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/deepseek-ai/deepseek-harness/r… | release-notes |
| https://github.com/deepseek-ai/deepseek-harness/c… | patch |
| https://www.vulncheck.com/advisories/deepseek-har… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| deepseek-ai | deepseek-harness |
Affected:
0 , < 0.1.2-alpha.2
(custom)
Affected: 0 , ≤ 3e24087bfaeabe40b58ba2f7b936895b8f93fe27 (git) |
guessed |
Date Public
2026-08-25 00:00
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Nomenclature
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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