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Path traversal in deepset-ai farm tokenizer loader

Priority MEDIUM 63CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

The deepset-ai farm package up to 0.8.0 has a path traversal flaw in the EmbeddingTokenizer.from_pretrained function in farm/modeling/tokenization.py. Manipulating the vocab_filename argument lets an attacker reach files outside the intended directory (CWE-22). A remote attacker can trigger it, and a public exploit has been published. The vendor did not respond to early disclosure, and the maintainer no longer supports the product.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Description from the CNA

A flaw has been found in deepset-ai farm up to 0.8.0. This impacts the function EmbeddingTokenizer.from_pretrained of the file farm/modeling/tokenization.py of the component Tokenizer Loader. Executing a manipulation of the argument vocab_filename can lead to path traversal. The attack may be performed from remote. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00474 41st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

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
deepset-aifarm0.1; 0.2; 0.3; 0.4; 0.5; 0.6; 0.7; 0.8.0—No fix listedCNA
  • farm Vendordeepset-ai Affected 0.1; 0.2; 0.3; 0.4; 0.5; 0.6; 0.7; 0.8.0 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:deepset-ai:farm:*:*:*:*:*:*:*:*———
  • cpe:2.3:a:deepset-ai:farm:*:*:*:*:*:*:*:* Versions — — ·—

Remediation

The sources list no fixed version for deepset-ai farm.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Timeline

  1. 2026-11-02 Threatist record created from CVE-2026-120334
  2. 2026-11-02 Alias added: GHSA-gv3h-7jmh-m254
  3. 2026-11-02 CISA SSVC decision points changed
  4. 2026-11-02 Priority changed: LOW → MEDIUM

References

  • TI-2026-83743 Path traversal in deepset-ai farm Model Package Loader CVSS 4.0LOW 2.4
  • TI-2024-27972 Insecure Jinja2 templates rendered in Haystack Components can lead to RCE CVSS 3.1HIGH 7.5

Sources