CVE-2026-52816
- Source
- https://cve.org/CVERecord?id=CVE-2026-52816
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-52816.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-52816
- Aliases
- Downstream
- Related
- Published
- 2026-06-24T20:26:34Z
- Modified
- 2026-10-16T02:35:51Z
- Severity
-
- 5.4 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:P CVSS Calculator
- Summary
- Gogs: Unauthenticated Jupyter Notebook (ipynb) Sanitizer allows arbitrary data: URIs leading to XSS
- Details
-
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.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-80" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52816.json" }- References
-
- https://github.com/gogs/gogs/releases/tag/v0.14.3
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52816.json
- https://github.com/gogs/gogs/security/advisories/GHSA-3w28-36p9-w929
- https://nvd.nist.gov/vuln/detail/CVE-2026-52816
- https://github.com/gogs/gogs/commit/dd1bd9837aa196b3ed3a8ee21e5727b5d7a986a3
- https://github.com/gogs/gogs/pull/8326
Affected packages
Git / github.com/gogs/gogs
Affected ranges
- Type
- GIT
- Repo
- https://github.com/gogs/gogs
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "0.14.3" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "dd1bd9837aa196b3ed3a8ee21e5727b5d7a986a3" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v0.14.3", "range": [ { "fixed": "3ba8aca90e17e5410b7e8b227c9f29256ac3e875" } ], "source": "REFERENCES_TAG" } ] }
Affected versions
Other
latest-commit-build
v0.*
v0.10
v0.10.18
v0.10.8
v0.10rc
v0.11
v0.11.19
v0.11.29
v0.11.33
v0.11.34
v0.11.4
v0.11.43
v0.11.53
v0.11.66
v0.11.79
v0.11.86
v0.11.91
v0.11rc
v0.14.0
v0.14.0-rc.1
v0.14.1
v0.14.1-rc.1
v0.14.2
v0.14.2-rc.1
v0.2.0
v0.3.0
v0.3.1
v0.4.0
v0.4.1
v0.4.2
v0.5.0
v0.5.11
v0.5.13
v0.5.2
v0.5.5
v0.5.8
v0.5.9
v0.6.1
v0.6.15
v0.6.3
v0.6.9
v0.7.0
v0.7.19
v0.7.22
v0.7.33
v0.7.6
v0.8.0
v0.8.10
v0.8.25
v0.8.43
v0.9.0
v0.9.113
v0.9.128
v0.9.13
v0.9.141
v0.9.46
v0.9.48
v0.9.60
v0.9.71
v0.9.97