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kritisch

CVE-2021-33026

The Flask-Caching extension through 1.10.1 for Flask relies on Pickle ...

Veröffentlicht Geändert CWE 502
In der Trivy Database seit spätestens 24. Okt. 2026, 07:11 UTCWann der Eintrag vor diesem Build hinzukam, ist nicht erfasst.

Einstufung nach Quelle

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GHSA4.2CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:H/A:N

Trivys eigenes Label ist CRITICAL. Kritisch laut NVD. Niedriger laut GHSA (mittel).

Beschreibung

The Flask-Caching extension through 1.10.1 for Flask relies on Pickle for serialization, which may lead to remote code execution or local privilege escalation. If an attacker gains access to cache storage (e.g., filesystem, Memcached, Redis, etc.), they can construct a crafted payload, poison the cache, and execute Python code. NOTE: a third party indicates that exploitation is extremely unlikely unless the machine is already compromised; in other cases, the attacker would be unable to write their payload to the cache and generate the required collision

Betroffene Pakete und behobene Versionen

QuellePaketBehoben in
debian 11flask-cachingkein Fix angegeben
debian 12flask-cachingkein Fix angegeben
debian 13flask-cachingkein Fix angegeben
debian 14flask-cachingkein Fix angegeben
echoflask-cachingkein Fix angegeben
pip::GitHub Security Advisory pipflask-cachingkein Fix angegeben
rapidfort debian 12flask-cachingkein Fix angegeben
rapidfort debian 13flask-cachingkein Fix angegeben

Referenzen

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.