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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-16627
StatePUBLISHED
AssignerGitLab
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-12 18:17:24 UTC
Updated2026-08-19 15:59:51 UTC
DescriptionGitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.2 before 19.2.2 that under certain conditions could have allowed an authenticated user with developer-role permissions to escalate privileges due to improper sanitization of HTML content rendered in a CI job modal.

Risk And Classification

Primary CVSS: v3.1 9 CRITICAL from [email protected]

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

EPSS: 0.002960000 probability, percentile 0.221950000 (date 2026-08-19)

Problem Types: CWE-79 | CWE-79 CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary9CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
3.1[email protected]Secondary7.7HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
3.1CNACVSS7.7HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Gitlab Gitlab All All All All
Application Gitlab Gitlab All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA GitLab GitLab affected 19.2 19.2.2 semver Not specified

References

ReferenceSourceLinkTags
hackerone.com/reports/3880796 [email protected] hackerone.com Permissions Required
gitlab.com/gitlab-org/gitlab/-/work_items/606678 [email protected] gitlab.com Broken Link
docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-2-released [email protected] docs.gitlab.com Release Notes, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Thanks [3nvz](https://hackerone.com/3nvz) for reporting this vulnerability through our HackerOne bug bounty program (en)

Additional Advisory Data

Solutions

CNA: Upgrade to version 19.2.2 or above.

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