CVE-2017-18026

Name: CVE-2017-18026
Creator: NVD / NIST
Published: 2018-01-10T09:29:00.19+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.83%

Last modified Jun 17, 2026

CVE-2017-18026 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.83% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

2.83%

84.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Redmine	Redmine	< 3.2.9
Redmine	Redmine	>= 3.3.0, < 3.3.6
Redmine	Redmine	>= 3.4.0, < 3.4.4
Debian	Debian Linux	9.0

References

https://github.com/redmine/redmine/commit/58ed8655136ff2fe5ff7796859bf6a399c76c678Patch, Third Party Advisory
https://github.com/redmine/redmine/commit/9d797400eaec5f9fa7ba9507c82d9c18cb91d02ePatch, Third Party Advisory
https://github.com/redmine/redmine/commit/ca87bf766cdc70179cb2dce03015d78ec9c13ebdPatch, Third Party Advisory
https://www.debian.org/security/2018/dsa-4191Third Party Advisory
https://www.redmine.org/issues/27516Permissions Required
https://www.redmine.org/projects/redmine/wiki/Security_AdvisoriesVendor Advisory
https://github.com/redmine/redmine/commit/58ed8655136ff2fe5ff7796859bf6a399c76c678Patch, Third Party Advisory
https://github.com/redmine/redmine/commit/9d797400eaec5f9fa7ba9507c82d9c18cb91d02ePatch, Third Party Advisory
https://github.com/redmine/redmine/commit/ca87bf766cdc70179cb2dce03015d78ec9c13ebdPatch, Third Party Advisory
https://www.debian.org/security/2018/dsa-4191Third Party Advisory
https://www.redmine.org/issues/27516Permissions Required
https://www.redmine.org/projects/redmine/wiki/Security_AdvisoriesVendor Advisory

Timeline

Published: Jan 10, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-18026?

How severe is CVE-2017-18026?

Severity scoring for CVE-2017-18026 is pending analysis. The EPSS model estimates a 2.83% probability of exploitation in the next 30 days.

How do I fix CVE-2017-18026?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-18026?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST