CVE-2021-22569

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

An issue in protobuf-java allowed the interleaving of com.google.protobuf.UnknownFieldSet fields in such a way that would be processed out of order. A small malicious payload can occupy the parser for several minutes by creating large numbers of short-lived objects that cause frequent, repeated pauses. We recommend upgrading libraries beyond the vulnerable versions.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-696

Affected software

No affected versions have been published.

Timeline

Published: Jan 10, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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