CVE-2024-45626: Apache James: denial of service through JMAP HTML to text conversion

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-02-06 · updated 2026-06-17
Weakness: CWE-400

Description

Apache James server JMAP HTML to text plain implementation in versions below 3.8.2 and 3.7.6 is subject to unbounded memory consumption that can result in a denial of service. Users are recommended to upgrade to version 3.7.6 and 3.8.2, which fix this issue.

Affected products

Apache James Server: before 3.7.6; from 3.8.0 before 3.8.2 — fixed in 3.7.6, 3.8.2

How to fix

Upgrade to a fixed version: Apache James Server 3.7.6, 3.8.2. Check the vendor advisory for mitigations.

References

https://lists.apache.org/thread/1fr9hvpsylomwwfr3rv82g84sxszn4kl
http://www.openwall.com/lists/oss-security/2025/02/05/7

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