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Regular Expression Denial Of Service (ReDoS)

🗓️ 14 Oct 2025 07:03:31Reported by Veracode Vulnerability DatabaseType 
veracode
 veracode🔗 sca.analysiscenter.veracode.com👁 5 Views

Transformers suffer ReDoS in AdamWeightDecay from user-controlled regex in includeinweightdecay and excludefromweightdecay.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
huntr		Regular Expression Denial of Service (ReDoS) in AdamWeightDecay Optimizer
18 Jun 202513:55
–huntr
bdu_fstec		The vulnerability of the _do_use_weight_decay() function in the Hugging Face Transformers library, which allows a hacker to cause a service failure.
6 Oct 202500:00
–bdu_fstec
cgr		CVE-2025-6921 vulnerabilities
16 Oct 202519:56
–cgr
cnnvd		transformers 资源管理错误漏洞
23 Sep 202500:00
–cnnvd
cve		CVE-2025-6921
23 Sep 202513:56
–cve
cvelist		CVE-2025-6921 Regular Expression Denial of Service (ReDoS) in huggingface/transformers
23 Sep 202513:56
–cvelist
ibm		Security Bulletin: IBM Maximo Application Suite - Monitor Component uses transformers-4.51.3-py3-none-any.whl which is vulnerable to CVE-2025-6921.
4 Dec 202506:12
–ibm
euvd		EUVD-2025-30889
3 Oct 202520:07
–euvd
github		Hugging Face Transformers vulnerable to Regular Expression Denial of Service (ReDoS) in the AdamWeightDecay optimizer
23 Sep 202515:31
–github
nvd		CVE-2025-6921
23 Sep 202514:15
–nvd
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11 Jul 2026 10:54Current
6.9Medium risk
Vulners AI Score6.9
CVSS 3.17.5
CVSS 35.3
EPSS0.00467
SSVC
transformersregular expressionsdenial of serviceAdam Weight Decayinclude weight decay
5