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Vulnerability record · CVE-2018-18898 · published 21 March 2019

CVE-2018-18898: Bestpractical request tracker uncontrolled resource consumption vulnerability

Bestpractical · Request Tracker

The email-ingestion feature in Best Practical Request Tracker 4.1.13 through 4.4 allows denial of service by remote attackers via an algorithmic complexity attack on email address parsing.

7.5 CVSS 3.1 High EPSS 2.4% · top 16.9% CWE-400 · Uncontrolled resource consumption
7.5CVSS 3.1 base score, v2 5.0
2.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
10References
17 Jun 2026Last modified by NVD

Description

The email-ingestion feature in Best Practical Request Tracker 4.1.13 through 4.4 allows denial of service by remote attackers via an algorithmic complexity attack on email address parsing.

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

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bestpractical.com/download-page ProductRelease Notes
https://lists.debian.org/debian-lts-announce/2020/02/msg00009.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CPJVDT77ZPRU5Z2BEMZM7EB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YR46PPHBEM76DNN4DEQMAYI
https://usn.ubuntu.com/4517-1/ Third Party Advisory
https://bestpractical.com/download-page ProductRelease Notes
https://lists.debian.org/debian-lts-announce/2020/02/msg00009.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CPJVDT77ZPRU5Z2BEMZM7EB
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YR46PPHBEM76DNN4DEQMAYI
https://usn.ubuntu.com/4517-1/ Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-18898), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.