CVE-2026-28737
HighCVSS 8.7Exploitation Probability (EPSS)
Low risk26th percentile - higher than 26% of all known CVEs
Summary
A stored cross-site scripting vulnerability in Gitea allows attackers to inject malicious scripts via the extensionsRequired field in glTF files rendered by the 3D file viewer. Affects versions from 1.25.0 before 1.26.0.
Risk Assessment
An attacker can execute arbitrary JavaScript in the victim's browser, potentially leading to session hijacking, repository modification, or data theft.
Recommendation
Upgrade Gitea to version 1.26.0 or later immediately to mitigate the vulnerability.
Other vulnerabilities in Gitea
See all- CVE-2026-60004CriticalActively exploited
Gitea before version 1.27.1 allows remote code execution via the diffpatch API through Git hook installation.
- CVE-2026-58508Critical
Two SSRF vulnerabilities in Gitea migration/mirror (DNS rebinding + missing re-validation).
- CVE-2026-58443Critical
Public-only repository tokens can update private PR head branches.
- CVE-2026-58433Critical
The team-repository linking endpoint bypasses the RepoAdminChangeTeamAccess organization setting. This means a user without proper permissions can change repository-team assignments.
- CVE-2026-56750Critical
Theft of the Remember-Me token in Gitea does not invalidate the attacker's session, allowing continued unauthorized access.
- CVE-2026-56654Critical
The vulnerability allows privilege escalation via access token scope escalation in the API.
- CVE-2026-56443Critical
A public-only scope token can bypass restrictions on limited-visibility owners (Repository and Package categories) — residual after CVE-2026-25714 / PR #37118.
- CVE-2026-55982Critical
The OIDC userinfo endpoint returns identity claims without enforcing API token scopes.
- CVE-2026-58426Critical
The vulnerability in Gitea Actions Artifacts V4 stems from HMAC ambiguity in signed URLs, allowing cross-repository artifact read and cross-task upload-state write.
- CVE-2026-27780Critical
A vulnerability in Gitea before version 1.26.0 fails to close the connection on bufio.Scanner errors while processing pre-receive hook input, allowing oversized input to bypass branch-protection checks.
Original NVD description (English source)
Gitea 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.