CVE Feed

    Dashboard / CVE / CVE-2026-52816

    CVE-2026-52816

    Gogs is an open source self-hosted Git service. Prior to 0.14.3, the Jupyter Notebook (ipynb) sanitizer endpoint at POST /-/api/sanitize_ipynb allows arbitrary data: URIs without proper restrictions, potentially leading to Cross-Site Scripting (XSS). The endpoint uses bluemonday.UGCPolicy() with p.AllowURLSchemes("data") which permits all data URI schemes including data:text/html, enabling attackers to inject malicious HTML/JavaScript. Additionally, the endpoint has no authentication middleware, allowing any registered user to exploit this vulnerability. This vulnerability is fixed in 0.14.3.

    Published:Jun 24, 2026
    Last Modified:Jun 25, 2026
    EPS:Jun 24, 2026
    EPSS Score:0.00677
    CVSS Score:5.4

    Affected Products

    Vendor
    Gogs
    Product
    Gogs

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-52797 (CVSS 8.5) — Gogs is an open source self-hosted Git service. Prior to 0.14.0, as an authorized user, an intruder can dictat…
    CVE-2026-52813 (CVSS 10) — Gogs is an open source self-hosted Git service. Prior to 0.14.3, organization names containing path traversal …
    CVE-2026-52812 (CVSS 7.1) — Gogs is an open source self-hosted Git service. Prior to 0.14.3, Git LFS storage is content-addressed by OID a…
    CVE-2026-52811 (CVSS 9) — Gogs is an open source self-hosted Git service. Prior to 0.14.3, (*Repository).UploadRepoFiles checks for syml…
    CVE-2026-52810 (CVSS 7.1) — Gogs is an open source self-hosted Git service. Prior to 0.14.3, Git smart HTTP authorizes POST …/git-receive-…
    CVE-2026-52809 (CVSS 6.8) — Gogs is an open source self-hosted Git service. Prior to 0.14.3, password-reset tokens are generated using con…
    CVE-2026-52808 (CVSS 7.1) — Gogs is an open source self-hosted Git service. Prior to 0.14.3, three API endpoints — PATCH /api/v1/repos/:ow…
    CVE-2026-52807 (CVSS 4.8) — Gogs is an open source self-hosted Git service. Prior to 0.14.3, in new_form.tmpl, milestone names are rendere…
    CVE-2026-52805 (CVSS 8.7) — Gogs is an open source self-hosted Git service. Prior to 0.14.3, a Server-Side Request Forgery (SSRF) vulnerab…
    CVE-2026-52806 (CVSS 9.9) — Gogs is an open source self-hosted Git service. Prior to 0.14.3, Gogs allows authenticated users to achieve Re…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High