UpHeron
All vulnerabilities

Servers and applications

CVE-2017-18026

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.

Severity
High 8.8
Published
10 Jan 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
3.2.9, 3.3.6, 3.4.4
Exploit chance
2.9% in the next 30 daysHigher than 86% of CVEs. EPSS by FIRST, 11 Nov 2026
Attack
Over the network · No login needed · Needs someone to click or open something
Attacker can
Read data · Change data · Take it down
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Sources
NVD

Affected software

SoftwareAffected versions
RedmineServers and applications · cpe:a:redmine:redmine
  • Every version before 3.2.9
  • From 3.3.0 before 3.3.6
  • From 3.4.0 before 3.4.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2017-18026
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2017-18026