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CVE-2026-10712

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

Published: Jun 25, 2026Updated: Jun 26, 2026 Sources: CVE List NVDCWE-79
8.0HIGH
NVD MITRE
EPSS Score
0.2%
Top 87.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.10 before 18.11.6, 19.0 before 19.0.3, and 19.1 before 19.1.1 that under certain conditions could have allowed an unauthenticated user to execute arbitrary JavaScript in a user's browser session due to improper path validation under certain conditions.

In plain language

AI Worth attention

CVE-2026-10712 is a GitLab flaw where, under certain conditions, someone without an account could trick a user into running malicious JavaScript in their browser. If you use an affected GitLab version, you should update—this is a “do something now” issue for most small businesses.

Executive summary

CVE-2026-10712 is an unauthenticated Cross-site Scripting (CWE-79) in GitLab where improper input neutralization during web page generation can allow attacker-controlled JavaScript to execute in a victim’s browser session under certain conditions (requires user interaction, and depends on specific reachability/path conditions).

If affected, business impact
Account/session hijacking riskStealing stored tokens or secretsMalicious actions as the userOperational disruption from phishing

What to do now

  1. Check your GitLab version number and whether it falls in the ranges before 18.11.6, 19.0.3, or 19.1.1.
  2. Plan an upgrade of GitLab to one of the fixed versions: 18.11.6 or 19.0.3 or 19.1.1 (or newer on your branch).
  3. After upgrading, verify GitLab is running the upgraded version and that related web UI pages load normally.
  4. Review web/app logs for unusual errors or suspicious requests around the time of upgrade readiness, especially if users reported odd pop-ups or redirects.
Patch / advisory Usually a quick update

CVSS Vector Breakdown

AV:NAC:HPR:NUI:RS:CC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-79

Affected Products

GitLab
commercial·NLaka gitlab ce/ee
GitLabSaaSWeb App
DevTools & CI / ci-cd
and 1 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2026-10712?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://gitlab.com/gitlab-org/gitlab/-/work_items/601857
gitlab.com
https://hackerone.com/reports/3688717
hackerone.com
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-1-released/
docs.gitlab.com
News mentions
3

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