How severe is CVE-2026-35485?

CVE-2026-35485 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-35485 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-35485?

CVE-2026-35485 affects Oobabooga Textgen. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-35485?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-35485 have an EU (EUVD) identifier?

Yes. CVE-2026-35485 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19669.

When was CVE-2026-35485 published?

CVE-2026-35485 was published on 2026-04-07 and last updated on 2026-06-17.

CVE-2026-35485

CVE-2026-35485 is a high-severity vulnerability in Oobabooga Textgen with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19669
Weakness: CWE-22
Affected product: Oobabooga Textgen
Published: 2026-04-07
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-35485?: 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.
How severe is CVE-2026-35485?: CVE-2026-35485 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-35485 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-35485?: CVE-2026-35485 affects Oobabooga Textgen. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-35485?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-35485 have an EU (EUVD) identifier?: Yes. CVE-2026-35485 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19669.
When was CVE-2026-35485 published?: CVE-2026-35485 was published on 2026-04-07 and last updated on 2026-06-17.

References

https://github.com/oobabooga/text-generation-webui/security/advisories/GHSA-hqg5-487v-5mc6

Affected products (1)

cpe:2.3:a:oobabooga:textgen:*:*:*:*:*:*:*:*

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