Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-8589— Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab

CVSS 7.3 · High EPSS 0.26% · P17

Possible ATT&CK Techniques 1AI

T1078.004 · Cloud Accounts

Affected Version Matrix 3

VendorProductVersion RangeStatus
GitLabGitLab13.1.4< 18.10.8affected
18.11< 18.11.5affected
19.0< 19.0.2affected
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-8589

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLab
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
GitLab Enterprise Edition（EE） 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GitLab Enterprise Edition（EE）是美国GitLab公司的一套内容管理系统。 GitLab EE 13.1.4至18.10.8之前版本、18.11至18.11.5之前版本和19.0至19.0.2之前版本存在跨站脚本漏洞，该漏洞源于特定组设置字段中用户输入清理不当，可能导致已认证用户向目标用户账户添加未授权电子邮件地址。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
GitLabGitLab 13.1.4 ~ 18.10.8 cpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-8589

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-8589

请登录查看更多情报信息。

Other References for CVE-2026-8589 (1)

Same Patch Batch · GitLab · 2026-06-11 · 11 CVEs total

CVE-2026-100878.7 HIGHImproper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Gi
CVE-2026-72507.5 HIGHAllocation of Resources Without Limits or Throttling in GitLab
CVE-2026-15006.5 MEDIUMAllocation of Resources Without Limits or Throttling in GitLab
CVE-2026-62695.4 MEDIUMIncorrect Authorization in GitLab
CVE-2026-92045.3 MEDIUMServer-Side Request Forgery (SSRF) in GitLab
CVE-2026-107334.3 MEDIUMImproper Restriction of Rendered UI Layers or Frames in GitLab
CVE-2026-62774.3 MEDIUMIncorrect Authorization in GitLab
CVE-2026-69763.7 LOWAuthorization Bypass Through User-Controlled Key in GitLab
CVE-2026-35533.1 LOWIncorrect Authorization in GitLab
CVE-2026-96942.6 LOWImproper Neutralization of Substitution Characters in GitLab

IV. Related Vulnerabilities

Same product: GitLab
Same vendor: GitLab
Same weakness: CWE-79

V. Comments for CVE-2026-8589

No comments yet

Leave a comment