Local file disclosure via nested symlink traversal
Published May 28, 2026 · Updated May 28, 2026
Link following in AnythingLLM before 1.13.0 allows remote authenticated users to copy files outside the allowed root into readable storage. The recursive copy helper validates only top-level paths, then fs.stat() and fs.copyFile() follow nested symlinks and materialize target bytes as a regular file. Exploitation requires high-privilege agent access, user interaction, and a symlink inside an allowed source directory; the result is bounded to local file disclosure.
Summary
What happened
Link following in AnythingLLM before 1.13.0 allows remote authenticated users to copy files outside the allowed root into readable storage. The recursive copy helper validates only top-level paths, then fs.stat() and fs.copyFile() follow nested symlinks and materialize target bytes as a regular file. Exploitation requires high-privilege agent access, user interaction, and a symlink inside an allowed source directory; the result is bounded to local file disclosure.
The record
- CVE
- CVE-2026-45403
- Published
- May 28, 2026
- Updated
- May 28, 2026
- Vendor
- Mintplex Labs
- Product
- AnythingLLM
- Classifications
- CWE-59, T1005
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- May 28, 2026CVE publishedPublication date reported by the CVE source.
- May 28, 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?
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- Affected versionversion=< 1.13.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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