All vulnerabilities
CVE-2026-51882

The OpenAI-compatible file upload endpoint `/v1/files` in Langchain-Chatchat 0.3.0 is vulnerable to path traversal. An attacker can write files to arbitrary locations outside the `openai_files` direct

n/a n/a
Open in ThreatlineRecord JSON
CVSS
9.1Critical
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 7 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.41%Chance of exploitation activity in the next 30 days, higher than 34% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version yet
Published1 Oct 2026Updated 7 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version.

Description

The OpenAI-compatible file upload endpoint /v1/files in Langchain-Chatchat 0.3.0 is vulnerable to path traversal. An attacker can write files to arbitrary locations outside the openai_files directory by crafting malicious filenames.

Text from CVE List

Affected versions 1

  • n/aaffected: n/aCVE List

References 2