Medium severity5.3NVD Advisory· Published Apr 11, 2022· Updated Jun 17, 2026
CVE-2022-24837
CVE-2022-24837
Description
HedgeDoc is an open-source, web-based, self-hosted, collaborative markdown editor. Images uploaded with HedgeDoc version 1.9.1 and later have an enumerable filename after the upload, resulting in potential information leakage of uploaded documents. This is especially relevant for private notes and affects all upload backends, except Lutim and imgur. This issue is patched in version 1.9.3 by replacing the filename generation with UUIDv4. If you cannot upgrade to HedgeDoc 1.9.3, it is possible to block POST requests to /uploadimage, which will disable future uploads.
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Affected products
2Patches
Vulnerability mechanics
References
3- github.com/hedgedoc/hedgedoc/commit/9e2f9e21e904c4a319e84265da7ef03b0a8e343anvdPatchThird Party Advisory
- github.com/hedgedoc/hedgedoc/security/advisories/GHSA-q6vv-2q26-j7rxnvdPatchThird Party Advisory
- github.com/node-formidable/formidable/issues/808nvdIssue TrackingThird Party Advisory
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