Read the docs
TI-2026-27614 Aliases CVE-2026-35485

text-generation-webui has a Path Traversal in load_grammar() — arbitrary file read without authentication

Priority HIGH 72CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

text-generation-webui is an open-source web interface for running Large Language Models. Prior to 4.3, an unauthenticated path traversal vulnerability in load_grammar() allows reading any file on the server filesystem with no extension restriction. Gradio does not server-side validate dropdown values, so an attacker can POST directory traversal payloads (e.g., ../../../etc/passwd) via the API and receive the full file contents in the response. This vulnerability is fixed in 4.3.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00689 52nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed text-generation-webui (oobabooga): 4.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
oobaboogatext-generation-webuibefore 4.34.3Patch availableCNA
  • text-generation-webui Vendoroobabooga Affected before 4.3 Fixed in 4.3 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:oobabooga:textgen:*:*:*:*:*:*:*:*before 4.3Vulnerableoobabooga
  • cpe:2.3:a:oobabooga:textgen:*:*:*:*:*:*:*:* Versions before 4.3 Vulnerable ·oobabooga

Remediation

  • Fix · CNA text-generation-webui (oobabooga) Fixed in 4.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-35485

References

Exploit 1

  • TI-2026-27253 Path traversal in oobabooga text-generation-webui CVSS 3.1CRITICAL 9.1
  • TI-2026-27613 text-generation-webui has a Path Traversal in load_preset() — .yaml file read without authentication CVSS 3.1MEDIUM 5.3
  • TI-2026-27612 text-generation-webui has a Path Traversal in load_template() — .jinja/.yaml/.yml file read without authentication CVSS 3.1MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences