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Vulnerability record · CVE-2017-18026 · published 10 January 2018

CVE-2017-18026: Redmine vulnerability

Redmine · Redmine

Redmine before 3.2.9, 3.3.x before 3.3.6, and 3.4.x before 3.4.4 does not block the --config and --debugger flags to the Mercurial hg program, which allows remote attackers to execute arbitrary commands (through the Mercurial adapter) via vectors involving a branch whose name begins with a --config= or --debugger= substring, a related issue to CVE-2017-17536.

8.8 CVSS 3.0 High EPSS 2.8% · top 14.0%
8.8CVSS 3.0 base score, v2 6.8
2.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

Description

Redmine before 3.2.9, 3.3.x before 3.3.6, and 3.4.x before 3.4.4 does not block the --config and --debugger flags to the Mercurial hg program, which allows remote attackers to execute arbitrary commands (through the Mercurial adapter) via vectors involving a branch whose name begins with a --config= or --debugger= substring, a related issue to CVE-2017-17536.

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

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

References

LinkTags
https://github.com/redmine/redmine/commit/58ed8655136ff2fe5ff7796859bf6a399c76c678 PatchThird Party Advisory
https://github.com/redmine/redmine/commit/9d797400eaec5f9fa7ba9507c82d9c18cb91d02e PatchThird Party Advisory
https://github.com/redmine/redmine/commit/ca87bf766cdc70179cb2dce03015d78ec9c13ebd PatchThird Party Advisory
https://www.debian.org/security/2018/dsa-4191 Third Party Advisory
https://www.redmine.org/issues/27516 Permissions Required
https://www.redmine.org/projects/redmine/wiki/Security_Advisories Vendor Advisory
https://github.com/redmine/redmine/commit/58ed8655136ff2fe5ff7796859bf6a399c76c678 PatchThird Party Advisory
https://github.com/redmine/redmine/commit/9d797400eaec5f9fa7ba9507c82d9c18cb91d02e PatchThird Party Advisory
https://github.com/redmine/redmine/commit/ca87bf766cdc70179cb2dce03015d78ec9c13ebd PatchThird Party Advisory
https://www.debian.org/security/2018/dsa-4191 Third Party Advisory
https://www.redmine.org/issues/27516 Permissions Required
https://www.redmine.org/projects/redmine/wiki/Security_Advisories Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2017-18026), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.