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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.83%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 2.83% probability · 87th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- redmine/redmine · debian/debian linux
- Source
- cve@mitre.org
EPSS 2.8% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.