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Ultralytics deserialization flaw enables remote code execution

Priority LOW 36CWE-502Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-502.

Summary

Ultralytics versions from 8.4.65 are affected. The load_dataset_cache_file function does not validate user-supplied data, so it deserializes untrusted data (CWE-502). A remote attacker can execute code in the context of the current user if the target visits a malicious page or opens a malicious file.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Ultralytics load_dataset_cache_file Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ultralytics. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the load_dataset_cache_file function. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-30124.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00264 18th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
UltralyticsUltralytics8.4.65—No fix listedCNA
  • Ultralytics VendorUltralytics Affected 8.4.65 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Ultralytics.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-28 Threatist record created from CVE-2026-118617
  2. 2026-10-28 Alias added: GHSA-79w4-wpg3-29fc
  3. 2026-10-30 Priority changed: MEDIUM → LOW
  4. 2026-11-05 CISA SSVC decision points changed

References

Other 1

  • TI-2021-11748 Deserialization of Untrusted Data vulnerability in yolo 3 allows attackers to execute… CVSS 3.1HIGH 7.8
  • TI-2021-11747 Deserialization of Untrusted Data vulnerability in yolo 5 allows attackers to execute… CVSS 3.1HIGH 7.8
  • TI-2026-82089 Path traversal in Ultralytics Drive downloads enables code execution CVSS 3.0HIGH 8.8
  • TI-2026-82085 Command injection in Ultralytics torch_safe_load allows code execution CVSS 3.0HIGH 7.8
  • TI-2026-82088 Code injection in Ultralytics parse_model allows code execution CVSS 3.0HIGH 7.8
  • TI-2026-82086 Code injection in Ultralytics parse_model allows code execution CVSS 3.0HIGH 7.8
See all 9 →

Sources