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Vulnerability details: VCID-qyfa-xf7d-n3gt
Vulnerability ID VCID-qyfa-xf7d-n3gt
Aliases CVE-2025-3264
GHSA-jjph-296x-mrcr
Summary Transformers vulnerable to ReDoS attack through its get_imports() function A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the Hugging Face Transformers library, specifically in the `get_imports()` function within `dynamic_module_utils.py`. This vulnerability affects versions 4.49.0 and is fixed in version 4.51.0. The issue arises from a regular expression pattern `\s*try\s*:.*?except.*?:` used to filter out try/except blocks from Python code, which can be exploited to cause excessive CPU consumption through crafted input strings due to catastrophic backtracking. This vulnerability can lead to remote code loading disruption, resource exhaustion in model serving, supply chain attack vectors, and development pipeline disruption.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1333 Inefficient Regular Expression Complexity
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
cvssv3 5.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-3264.json
epss 0.00096 https://api.first.org/data/v1/epss?cve=CVE-2025-3264
cvssv3.1 5.3 https://github.com/huggingface/transformers
generic_textual MODERATE https://github.com/huggingface/transformers
cvssv3 5.3 https://github.com/huggingface/transformers/commit/0720e206c6ba28887e4d60ef60a6a089f6c1cc76
cvssv3.1 5.3 https://github.com/huggingface/transformers/commit/0720e206c6ba28887e4d60ef60a6a089f6c1cc76
generic_textual MODERATE https://github.com/huggingface/transformers/commit/0720e206c6ba28887e4d60ef60a6a089f6c1cc76
ssvc Track https://github.com/huggingface/transformers/commit/0720e206c6ba28887e4d60ef60a6a089f6c1cc76
cvssv3.1 5.3 https://github.com/huggingface/transformers/commit/126abe3461762e5fc180e7e614391d1b4ab051ca
generic_textual MODERATE https://github.com/huggingface/transformers/commit/126abe3461762e5fc180e7e614391d1b4ab051ca
cvssv3 5.3 https://huntr.com/bounties/3c6f7822-9992-476d-8cf0-b0b1623427df
cvssv3.1 5.3 https://huntr.com/bounties/3c6f7822-9992-476d-8cf0-b0b1623427df
generic_textual MODERATE https://huntr.com/bounties/3c6f7822-9992-476d-8cf0-b0b1623427df
ssvc Track https://huntr.com/bounties/3c6f7822-9992-476d-8cf0-b0b1623427df
cvssv3.1 5.3 https://nvd.nist.gov/vuln/detail/CVE-2025-3264
generic_textual MODERATE https://nvd.nist.gov/vuln/detail/CVE-2025-3264
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-3264.json
https://api.first.org/data/v1/epss?cve=CVE-2025-3264
https://github.com/huggingface/transformers
https://github.com/huggingface/transformers/commit/0720e206c6ba28887e4d60ef60a6a089f6c1cc76
https://github.com/huggingface/transformers/commit/126abe3461762e5fc180e7e614391d1b4ab051ca
https://huntr.com/bounties/3c6f7822-9992-476d-8cf0-b0b1623427df
2376768 https://bugzilla.redhat.com/show_bug.cgi?id=2376768
CVE-2025-3264 https://nvd.nist.gov/vuln/detail/CVE-2025-3264
GHSA-jjph-296x-mrcr https://github.com/advisories/GHSA-jjph-296x-mrcr
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-3264.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://github.com/huggingface/transformers
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Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://github.com/huggingface/transformers/commit/0720e206c6ba28887e4d60ef60a6a089f6c1cc76
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://github.com/huggingface/transformers/commit/0720e206c6ba28887e4d60ef60a6a089f6c1cc76
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2025-07-07T14:37:34Z/ Found at https://github.com/huggingface/transformers/commit/0720e206c6ba28887e4d60ef60a6a089f6c1cc76
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://github.com/huggingface/transformers/commit/126abe3461762e5fc180e7e614391d1b4ab051ca
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://huntr.com/bounties/3c6f7822-9992-476d-8cf0-b0b1623427df
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://huntr.com/bounties/3c6f7822-9992-476d-8cf0-b0b1623427df
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2025-07-07T14:37:34Z/ Found at https://huntr.com/bounties/3c6f7822-9992-476d-8cf0-b0b1623427df
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://nvd.nist.gov/vuln/detail/CVE-2025-3264
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

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Exploit Prediction Scoring System (EPSS)
Percentile 0.26595
EPSS Score 0.00096
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:24:19.277209+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/pypi/transformers/CVE-2025-3264.yml 38.6.0