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CVE-2026-25642
HedgeDoc security headers for uploaded files were not working
Medium4.3EPSS 0.24%
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
HedgeDoc is an open source, real-time, collaborative, markdown notes application. Prior to 1.10.6, files served below the /uploads/ endpoint did not use a more strict security-policy. This resulted in a too open Content-Security-Policy and furthermore opened the possibility to host malicious interactive web content (such as fake login forms) using SVG files. This vulnerability is fixed in 1.10.6.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |
| NVDNVD · Analyzed | 3.1 | Medium6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.24% · top 85% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
Affected products
References (4)
- https://github.com/hedgedoc/hedgedoc/security/advisories/GHSA-x74j-jmf9-534w (opens in a new tab)x_refsource_CONFIRM
- https://github.com/hedgedoc/hedgedoc/commit/74daa0e7a1cbfafd9aeb255eaf064dfe47cd401c (opens in a new tab)x_refsource_MISC
- https://github.com/hedgedoc/hedgedoc/commit/b930fe04cee92cd4723044030bb59c36781c7137 (opens in a new tab)x_refsource_MISC
- https://github.com/hedgedoc/hedgedoc/releases/tag/1.10.6 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-25642)Record last updated .