Authenticated file disclosure via unrestricted upload paths
Published May 19, 2026 · Updated May 19, 2026
Path traversal in Trilium Next Trilium Notes before 0.102.2 allows remote authenticated users to read arbitrary server files. The uploadModifiedFileToAttachment and uploadModifiedFileToNote functions accept a request-supplied filePath and copy that file into downloadable content without restricting it to an allowed directory. High-privilege authenticated access and a valid CSRF token are required; successful requests disclose files readable by the server process, including credentials and co-hosted application data.
Summary
What happened
Path traversal in Trilium Next Trilium Notes before 0.102.2 allows remote authenticated users to read arbitrary server files. The uploadModifiedFileToAttachment and uploadModifiedFileToNote functions accept a request-supplied filePath and copy that file into downloadable content without restricting it to an allowed directory. High-privilege authenticated access and a valid CSRF token are required; successful requests disclose files readable by the server process, including credentials and co-hosted application data.
The record
- CVE
- CVE-2026-35593
- Published
- May 19, 2026
- Updated
- May 19, 2026
- Vendor
- Trilium Next
- Product
- Trilium Notes
- Classifications
- CWE-73, CWE-22, T1005
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 19, 2026CVE publishedPublication date reported by the CVE source.
- May 19, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 0.102.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Upstream arbitrary-file retrieval reproduction stepsproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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