HuggingFace transformers vulnerable to remote code execution via config.json
transformers
A critical vulnerability in HuggingFace transformers allows remote code execution when loading untrusted models due to unfiltered deserialization. Users are advised to update to version 5.3.0 or later.
disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why
- CVSS
- 7.8
- EPSS
- 0.01 · top 47% · 2026-11-13
- fix status
- Fix status unknown
- first report
- 26 May 2026
- last update
- 26 May 2026
- CVE ids
Timeline · 1
Sources · 1
Advisories and databases
- 2026-05-26CVE-2026-4372: HuggingFace transformers vulnerable to remote code executionGitHub Advisory Database · github.com/advisories/GHSA-29pf-2h5f-8g72
Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.
Classification
- lane
- Patch now
- AI role
- Attack on AI
- categories
- Infrastructure vulnerability
- severity
- 2 · Disclosed vulnerability
- fix status
- Fix status unknown
- targets
- Framework / tooling
- owasp llm top 10
- LLM03:2025 Supply Chain
- mitre atlas
- no technique for these categories
- dates
- happened 26 May 2026 · first reported 26 May 2026
- origin
- GitHub Advisory DatabaseVulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
- record
- confidence 0.95 · created 2026-10-18 07:00Z · updated 2026-10-18 07:00Z
Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned
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the brief as text
# HuggingFace transformers vulnerable to remote code execution via config.json https://gcdradar.vercel.app/incidents/huggingface-transformers-vulnerable-to-remote-code-execution · AIR-2026-0717 · closed 2026-05-26 - Lane: Patch now - Severity: 2 (Disclosed vulnerability) - Fix status: Fix status unknown - First reported: 2026-05-26 - AI role: Attack on AI - Products: transformers - CVE ids: CVE-2026-4372 - CVSS: 7.8 ## Summary A critical vulnerability in HuggingFace transformers allows remote code execution when loading untrusted models due to unfiltered deserialization. Users are advised to update to version 5.3.0 or later. ## What to do No action recorded; read the sources below and the vendor's advisory. ## Latest updates - 2026-05-26: CVE-2026-4372: HuggingFace transformers vulnerable to remote code execution (https://github.com/advisories/GHSA-29pf-2h5f-8g72) ## Sources - 2026-05-26 GitHub Advisory Database: CVE-2026-4372: HuggingFace transformers vulnerable to remote code execution https://github.com/advisories/GHSA-29pf-2h5f-8g72 Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.
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AI