CVE-2025-1194: Transformers Regular Expression Denial of Service Vulnerability
transformers
A regular expression denial of service vulnerability exists in the huggingface transformers library within the Japanese tokenizer. Specially crafted inputs can cause excessive CPU usage and application downtime.
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
- 4.3
- EPSS
- <0.01 · top 58% · 2026-11-13
- fix status
- Fix status unknown
- first report
- 29 Apr 2025
- last update
- 29 Apr 2025
- CVE ids
Timeline · 1
Sources · 1
Advisories and databases
- 2025-04-29CVE-2025-1194: Transformers Regular Expression Denial of Service (ReDoS) vulnerabilityGitHub Advisory Database · github.com/advisories/GHSA-fpwr-67px-3qhx
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 29 Apr 2025 · first reported 29 Apr 2025
- 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
Copy a brief
This record as a short Markdown brief, for a ticket, a chat or a coding agent.
the brief as text
# CVE-2025-1194: Transformers Regular Expression Denial of Service Vulnerability https://gcdradar.vercel.app/incidents/cve-2025-1194-transformers-regular-expression-denial-of-serv · AIR-2025-0275 · closed 2025-04-29 - Lane: Patch now - Severity: 2 (Disclosed vulnerability) - Fix status: Fix status unknown - First reported: 2025-04-29 - AI role: Attack on AI - Products: transformers - CVE ids: CVE-2025-1194 - CVSS: 4.3 ## Summary A regular expression denial of service vulnerability exists in the huggingface transformers library within the Japanese tokenizer. Specially crafted inputs can cause excessive CPU usage and application downtime. ## What to do No action recorded; read the sources below and the vendor's advisory. ## Latest updates - 2025-04-29: CVE-2025-1194: Transformers Regular Expression Denial of Service (ReDoS) vulnerability (https://github.com/advisories/GHSA-fpwr-67px-3qhx) ## Sources - 2025-04-29 GitHub Advisory Database: CVE-2025-1194: Transformers Regular Expression Denial of Service (ReDoS) vulnerability https://github.com/advisories/GHSA-fpwr-67px-3qhx Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.
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AI - closed5.3Hugging Face libraries CVE-2024-12720: Transformers ReDoS Vulnerability
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AI