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CVE-2025-3263

17
FAUCET Score

CVE-2025-3263 describes a Regular Expression Denial of Service (ReDoS) vulnerability in the Hugging Face Transformers library, specifically in the get_configuration_file() function. This flaw, present in version 4.49.0 and resolved in 4.51.0, allows attackers to trigger excessive CPU consumption and service disruption through specially crafted input strings. The vulnerability has a CVSS score of 5.3 (MEDIUM), indicating a low attack complexity and no user interaction required, but only a low impact on availability. Its EPSS score is very low, suggesting a minimal likelihood of exploitation in the wild. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.49.0, < 4.51.0CPE matchmatch criteria
cpe:2.3:a:huggingface:transformers:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.43%
Probability of exploitation in next 30 days
EPSS Percentile
35.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0043 is in the 22nd percentile among its peer group of 23,725 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: transformersFixed in: 4.51.0

Vendor Advisories (2)

pipGHSA-q2wp-rjmx-x6x9medium

Transformers's ReDoS vulnerability in get_configuration_file can lead to catastrophic backtracking

Jul 7, 2025
redhatCVE-2025-3263Moderate

transformers: Regular Expression Denial of Service (ReDoS) in huggingface/transformers

Jul 7, 2025

References

github.com / huggingface/transformers/commit/0720e206c6ba28887e4d60ef60a6a089f6c1cc76
Patch
huntr.com / bounties/c7a69150-54f8-4e81-8094-791e7a2a0f29
ExploitThird Party Advisory