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HIGH7.5

PYSEC-2026-1457

HyperLPR Denial of Service vulnerability

Details

A vulnerability in szad670401/hyperlpr v3.0 allows for a Denial of Service (DoS) attack. The server fails to handle excessive characters appended to the end of multipart boundaries, regardless of the character used. This flaw can be exploited by sending malformed multipart requests with arbitrary characters at the end of the boundary, leading to excessive resource consumption and a complete denial of service for all users. The vulnerability is unauthenticated, meaning no user login or interaction is required for an attacker to exploit this issue.

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Affected packages

PyPI/hyperlpr3
Introduced in: 0

No fixed version published yet for hyperlpr3 (pip). Pin to a known-safe version or switch to an alternative.

References