CVE-2026-35485Public exploitNetwork attack vector

Unauthenticated file read via unchecked grammar path

Published Apr 7, 2026 · Updated Apr 7, 2026

Path traversal in oobabooga text-generation-webui before 4.3 allows remote attackers to read server files through its Gradio API. The load_grammar function joins an unchecked dropdown value beneath the grammar directory and opens the resolved path without validation or an extension restriction. The endpoint requires no authentication by default and discloses any file readable by the server process when the service is reachable.

CVSS severity7.5
High
EPSS probability0.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in oobabooga text-generation-webui before 4.3 allows remote attackers to read server files through its Gradio API. The load_grammar function joins an unchecked dropdown value beneath the grammar directory and opens the resolved path without validation or an extension restriction. The endpoint requires no authentication by default and discloses any file readable by the server process when the service is reachable.

The record

CVE
CVE-2026-35485
Published
Apr 7, 2026
Updated
Apr 7, 2026
Vendor
oobabooga
Product
text-generation-webui
Classifications
CWE-22, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 7, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 4.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

oobabooga · text-generation-webuiversion=< 4.3

Published CVSS scores

7.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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