DB-GPT: Path traversal in skill upload allows arbitrary file write
Summary
DB-GPT 0.8.0 contains a directory traversal in the skill_upload handler. A remote attacker can supply a crafted filename with ../ sequences to write files outside the upload directory, which could overwrite application code or configuration. The public issue describes the attack as requiring an authenticated user, while other sources describe unauthenticated access; the worst case is assumed here.
Affected
- DB-GPT 0.8.0 (per CVE record)
- Issue #3026 confirms 0.8.0rc6; earlier versions are likely affected but unconfirmed
Fixed in
- Fixed in DB-GPT 0.8.1 according to secondary sources; not yet verified against the vendor release notes
- Unknown for later versions
Workaround
- Restrict network access to the DB-GPT service and the skill upload route to trusted internal networks
- Block the upload endpoint at a reverse proxy or WAF, or place the service behind an authenticating reverse proxy
- Run DB-GPT as a least-privileged account with a read-only application directory
Exploitation
- CISA SSVC: exploitation status 'poc', automatable: yes, technical impact: total
- Public issue #3026 includes reproduction steps
- No known exploitation in the wild found
Our recommendation
- Inventory all DB-GPT deployments (for example with pip show dbgpt-app)
- Check whether the service is reachable from outside the company network and restrict access
- Upgrade to DB-GPT 0.8.1 and verify the vendor's fix covers the related python-upload handling
- Monitor for upload requests containing traversal sequences and audit application directories for unexpected .py files
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- GitHub issue #3026 (DB-GPT) github.com
- Proof-of-concept gist (Ro1ME) gist.github.com
- VulDB CVE-2026-51862 vuldb.com
- HOL analysis of skill_upload path traversal hol.org
- HOL CISA ADP Vulnrichment entry for CVE-2026-51862 hol.org
- SentinelOne vulnerability database (CVE-2026-80104) www.sentinelone.com
- Ionix threat center (CVE-2026-80104) www.ionix.io
- CVEfeed CVE-2026-80104 cvefeed.io
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 31 Oct 2026, 07:47.
Original description (NVD)
DB-GPT 0.8.0 contains directory traversal in skill_upload (packages/dbgpt-app/src/dbgpt_app/openapi/api_v1/agentic_data_api.py:40). A remote attacker can use the validated exploitation path to write files outside the intended workspace or storage boundary.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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