SecuriTricks - CVE-2026-8589

Description

GitLab has remediated an issue in GitLab EE affecting all versions from 13.1.4 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to add unauthorized email addresses to a targeted user's account due to improper sanitization of user-supplied input in certain group setting fields.

Product(s) Impacted

Vendor	Product	Versions
Gitlab	Gitlab	13.1.4-18.10.7, 18.11.0-18.11.4, 19.0.0-19.0.1

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	gitlab	gitlab	13.1.4-18.10.7	/	/	/	/	/	/	/
a	gitlab	gitlab	18.11.0-18.11.4	/	/	/	/	/	/	/
a	gitlab	gitlab	19.0.0-19.0.1	/	/	/	/	/	/	/

References

https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/

https://gitlab.com/gitlab-org/gitlab/-/work_items/600099

https://hackerone.com/reports/3722842

CVSS Score

7.3 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: HIGH
Privileges Required: HIGH
Scope: CHANGED
Confidentiality Impact: HIGH
Integrity Impact: HIGH
Availability Impact: NONE

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N

View Vector String

Timeline

Published: June 11, 2026, 12:16 p.m.
Last Modified: June 11, 2026, 12:16 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2026-8589