CVE-2025-6998

ReDoS in strip_whitespaces() function in cps/string_helper.py in Calibre Web and Autocaliweb allowsunauthenticated remote attackers to cause denial of service via specially crafted username parameter that triggers catastrophic backtracking during login.This issue affects Calibre Web: 0.6.24 (Nicolette); Autocaliweb: from 0.7.0 before 0.7.1.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
UNKNOWN
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Fluid AttacksCNA
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CISA-ADPADP
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