CVE-2026-1836

Stored credentials in Redmine

5.3 MediumFix available

The system stores the username and password from the login form after submitting the request. This could allow an attacker with access to the platform to return to the browser and view the login credentials.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: Active

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: None

Exploit likelihood

0.10%Up 0.1 points since Jun 13, 2026

What each source reports

CVE List Score used 5.3

Stored credentials in Redmine

Record: CVE-2026-1836
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness: CWE-257
Updated: 2026-11-02

EUVDEUVD-2026-36424 5.3

Record: EUVD-2026-36424
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-w8cj-56rx-3gpm 5.3

The system stores the username and password from the login form after submitting the request....

Record: GHSA-w8cj-56rx-3gpm
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness: CWE-257
Updated: 2026-11-02

NVD 5.3

Record: CVE-2026-1836
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness: CWE-257
Updated: 2026-11-02

OSVDEBIAN-CVE-2026-1836 5.3

Record: DEBIAN-CVE-2026-1836
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-1836 5.3

Record: UBUNTU-CVE-2026-1836
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Updated: 2026-11-02

Affected products

redmine

Affected packages

Affected packages
Package	Affected	Fixed
`redmine` Debian:12	All versions, plus listed versions 5.0.4-55.0.4-5+deb12u15.0.4-65.0.4-75.1.3+ds-1 Show 25 moreShow less 5.1.3+ds-25.1.3+ds-35.1.3+ds-45.1.3+ds-55.1.3+ds-66.0.3+ds-16.0.3+ds-26.0.4+ds-16.0.4+ds-26.0.4+ds-36.0.5+ds-16.0.6+ds-16.0.6+ds-26.0.6+ds-36.0.6+ds-46.0.6+ds-56.0.6+ds-66.1.3+ds-16.1.3+ds-26.1.3+ds-36.1.3+ds2-16.1.4+ds-16.1.4+ds-26.1.4+ds-36.1.4+ds2-1	None known
`redmine` Debian:13	All versions, plus listed versions 6.0.5+ds-16.0.6+ds-16.0.6+ds-26.0.6+ds-36.0.6+ds-4 Show 10 moreShow less 6.0.6+ds-56.0.6+ds-66.1.3+ds-16.1.3+ds-26.1.3+ds-36.1.3+ds2-16.1.4+ds-16.1.4+ds-26.1.4+ds-36.1.4+ds2-1	None known
`redmine` Debian:14	before 6.1.3+ds-1, plus listed versions 6.0.5+ds-16.0.6+ds-16.0.6+ds-26.0.6+ds-36.0.6+ds-46.0.6+ds-56.0.6+ds-6	6.1.3+ds-1
`redmine` Ubuntu:16.04:LTS	All versions, plus listed versions 3.0~20140825-83.2.0-13.2.0-33.2.1-13.2.1-23.2.1-2ubuntu0.2	None known
`redmine` Ubuntu:18.04:LTS	All versions, plus listed versions 3.3.1-43.4.2-13.4.4-13.4.4-1ubuntu0.1	None known
`redmine` Ubuntu:20.04:LTS	All versions, plus listed versions 4.0.4-14.0.4-34.0.6-2	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-1836 is a medium vulnerability (CVSS 5.3) in Redmine, published June 12, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.10%, the 1st percentile. Fixed in redmine 6.1.3+ds-1.