CVE-2026-35484: text-generation-webui is an open-source web interface for running Large Language Models

Q: How do I fix CVE-2026-35484?

textgen: upgrade to 4.3. Exact commands for each OS are on this page.

Q: Is CVE-2026-35484 being exploited?

CVE-2026-35484 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-35484 affect?

CVE-2026-35484 affects textgen. Severity is medium (CVSS 5.3). 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_preset() allows reading any .yaml file on the server filesystem. The parsed YAML

Q: How urgent is CVE-2026-35484?

Priority 35/100. Public exploit reference; Remotely exploitable, no login, no user action

This week

MEDIUM 5.3REMOTEUPGRADE

CVE-2026-35484 is a medium-severity flaw (CVSS 5.3) affecting textgen. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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_preset() allows reading any .yaml file on the server filesystem. The parsed YAML key-value pairs (including passwords, API keys, connection strings) are returned in the API response. This vulnerability is fixed in 4.3.

Why this priority

Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 75%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-04-07
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: oobabooga

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-07 15:17 UTCPublished CVE record published
2026-10-26 22:10 UTCUpdated Record last modified

oobabooga textgen UPGRADE

Affected: < 4.3

Fixed in: 4.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy textgen || rpm -q textgen || textgen --version

2. UPGRADE to 4.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade textgen

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade textgen

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-35484?

textgen: upgrade to 4.3. Exact commands for each OS are on this page.

Is CVE-2026-35484 being exploited?

CVE-2026-35484 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-35484 affect?

CVE-2026-35484 affects textgen. Severity is medium (CVSS 5.3). 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_preset() allows reading any .yaml file on the server filesystem. The parsed YAML

How urgent is CVE-2026-35484?

Priority 35/100. Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-35485 HIGH 7.5 UPGRADE text-generation-webui is an open-source web interface for running Large Language Models
CVE-2026-35483 MEDIUM 5.3 UPGRADE text-generation-webui is an open-source web interface for running Large Language Models
CVE-2026-35050 CRITICAL 9.1 UPGRADE text-generation-webui is an open-source web interface for running Large Language Models

References

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