Pallets Project Flask is vulnerable to Denial of Service via Unexpected memory usage

ALTO 7.5CVE-2019-1010083 · GHSA-5wv5-4vpf-pj6m · PYSEC-2019-179 · Published 17/07/2019 · updated 17/06/2026

Package	Affected versions	Patched versions
flask PyPI	`< 1.0`	`1.0`
flask palletsprojects	`< 1.0`	`1.0`

Description

The Pallets Project Flask before 1.0 is affected by unexpected memory usage. The impact is denial of service. The attack vector is crafted encoded JSON data. The fixed version is 1. NOTE this may overlap CVE-2018-1000656.

NVD description

The Pallets Project Flask before 1.0 is affected by: unexpected memory usage. The impact is: denial of service. The attack vector is: crafted encoded JSON data. The fixed version is: 1. NOTE: this may overlap CVE-2018-1000656.

References

nvd.nist.gov/vuln/detail/CVE-2019-1010083 · ADVISORY
GitHub Advisory GHSA-5wv5-4vpf-pj6m · ADVISORY
pallets/flask · PACKAGE
pypa/advisory-database · WEB
palletsprojects.com/blog/flask-1-0-released · WEB
palletsprojects.com/blog/flask-1-0-released · Release Notes

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