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CVE-2024-28102

python-jwcrypto: malicious JWE token can cause denial of service

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Severity

Moderate

Red Hat Product Security

6.8

CVSS 3.1

Review impact separately from score.

Published · March 8, 2024

Updated · February 27, 2026

Description

An uncontrolled resource consumption vulnerability was found in python-jwcrypto. If a malicious JWE token with a high compression ratio is passed to the server, the server will consume a lot of memory and processing time, leading to a denial of service.

Statement

The CVE-2024-28102 vulnerability in JWCrypto represents a moderate severity issue due to its potential impact on system availability and resource consumption. While the vulnerability allows for a denial of service (DoS) attack, it requires an attacker to craft a malicious JWE Token with a high compression ratio. This specific condition limits the practical exploitability of the vulnerability to some extent, as it demands a more sophisticated attack approach than common vulnerabilities. Nonetheless, if exploited, the vulnerability can lead to significant memory exhaustion and increased server processing time, impacting the overall performance and availability of the affected system.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 6.8
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

CWE-400 · Uncontrolled Resource Consumption