CVE-2025-3262
published 2025-07-07CVE-2025-3262: A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the huggingface/transformers repository, specifically in version 4.49.0. The…
PriorityP337high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.43%
34.4th percentile
A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the huggingface/transformers repository, specifically in version 4.49.0. The vulnerability is due to inefficient regular expression complexity in the `SETTING_RE` variable within the `transformers/commands/chat.py` file. The regex contains repetition groups and non-optimized quantifiers, leading to exponential backtracking when processing 'almost matching' payloads. This can degrade application performance and potentially result in a denial-of-service (DoS) when handling specially crafted input strings. The issue is fixed in version 4.51.0.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| huggingface | huggingface_transformers | >= unspecified < 4.51.0 | 4.51.0 |
| huggingface | transformers | < 4.51.0 | 4.51.0 |
| huggingface | transformers | >= 4.49.0 < 4.51.0 | 4.51.0 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv3.05.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
vendor_redhat7.5HIGH
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GHSA
Transformers vulnerable to ReDoS attack through its SETTING_RE variable
ghsa·2025-07-07
CVE-2025-3262 [MEDIUM] CWE-1333 Transformers vulnerable to ReDoS attack through its SETTING_RE variable
Transformers vulnerable to ReDoS attack through its SETTING_RE variable
A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the huggingface/transformers repository, specifically in version 4.49.0. The vulnerability is due to inefficient regular expression complexity in the `SETTING_RE` variable within the `transformers/commands/chat.py` file. The regex contains repetition groups and non-optimized quantifiers, leading to exponential backtracking when processing 'almost matching' payloads. This can degrade application performance and potentially result in a denial-of-service (DoS) when handling specially crafted input strings. The issue is fixed in version 4.51.0.
OSV
Transformers vulnerable to ReDoS attack through its SETTING_RE variable
osv·2025-07-07
CVE-2025-3262 [MEDIUM] Transformers vulnerable to ReDoS attack through its SETTING_RE variable
Transformers vulnerable to ReDoS attack through its SETTING_RE variable
A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the huggingface/transformers repository, specifically in version 4.49.0. The vulnerability is due to inefficient regular expression complexity in the `SETTING_RE` variable within the `transformers/commands/chat.py` file. The regex contains repetition groups and non-optimized quantifiers, leading to exponential backtracking when processing 'almost matching' payloads. This can degrade application performance and potentially result in a denial-of-service (DoS) when handling specially crafted input strings. The issue is fixed in version 4.51.0.
Red Hat
transformers: Regular Expression Denial of Service (ReDoS) in huggingface/transformers
vendor_redhat·2025-07-07·CVSS 7.5
CVE-2025-3262 [HIGH] CWE-1333 transformers: Regular Expression Denial of Service (ReDoS) in huggingface/transformers
transformers: Regular Expression Denial of Service (ReDoS) in huggingface/transformers
A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the huggingface/transformers repository, specifically in version 4.49.0. The vulnerability is due to inefficient regular expression complexity in the `SETTING_RE` variable within the `transformers/commands/chat.py` file. The regex contains repetition groups and non-optimized quantifiers, leading to exponential backtracking when processing 'almost matching' payloads. This can degrade application performance and potentially result in a denial-of-service (DoS) when handling specially crafted input strings. The issue is fixed in version 4.51.0.
A Regular Expression Denial of Service (ReDoS) vulnerability has been discovered in t
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-07-07
Published