Gitea 3D file viewer allows stored XSS through glTF extensionsRequired

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-28737
StatePUBLISHED
AssignerGitea
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-03 21:16:59 UTC
Updated2026-07-07 18:16:38 UTC
DescriptionGitea versions from 1.25.0 before 1.26.0 allow stored cross-site scripting through the extensionsRequired field in glTF files rendered by the 3D file viewer.

Risk And Classification

Primary CVSS: v3.1 8.7 HIGH from 88ee5874-cf24-4952-aea0-31affedb7ff2

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

EPSS: 0.003360000 probability, percentile 0.256100000 (date 2026-07-09)

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

VersionSourceTypeScoreSeverityVector
3.188ee5874-cf24-4952-aea0-31affedb7ff2Secondary8.7HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
3.1CNADECLARED8.7HIGHCVSS:3.1/AV:N/AC:L/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
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Gitea Gitea Open Source Git Server affected 1.25.0 1.26.0 semver Not specified

References

ReferenceSourceLinkTags
github.com/go-gitea/gitea/security/advisories/GHSA-9cpj-qc93-vw8v 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/go-gitea/gitea/pull/37233 88ee5874-cf24-4952-aea0-31affedb7ff2 github.com
blog.gitea.com/release-of-1.26.0 88ee5874-cf24-4952-aea0-31affedb7ff2 blog.gitea.com
github.com/go-gitea/gitea/releases/tag/v1.26.0 88ee5874-cf24-4952-aea0-31affedb7ff2 github.com
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: yonatan-pl (en)

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