CVE-2025-3263: A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the Hugging Face Transformers library, sp
Summary
A ReDoS vulnerability (regular expression denial of service, where specially crafted input causes a program to use excessive CPU by making the regex engine work inefficiently) was found in the Hugging Face Transformers library version 4.49.0, specifically in a function that reads configuration files. An attacker could send malicious input to make the application slow down or crash by exhausting its computing resources.
Solution / Mitigation
Update to version 4.51.0, where the issue is resolved.
Vulnerability Details
EPSS: 0.0%
Classification
Taxonomy References
Affected Vendors
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Original source: https://nvd.nist.gov/vuln/detail/CVE-2025-3263
First tracked: February 15, 2026 at 08:46 PM
Classified by LLM (prompt v3) · confidence: 95%