CVE-2026-45403: AnythingLLM is an application that turns pieces of content into context that any LLM can use as references during chatting. Prior to 1.13.0, the Anyth...

Description

AnythingLLM is an application that turns pieces of content into context that any LLM can use as references during chatting. Prior to 1.13.0, the AnythingLLM agent filesystem copy tool validates only the top-level source and destination paths. The recursive copy helper then descends into child entries using fs.stat() and copies files with fs.copyFile() without validating each child or rejecting symlinks. Because both APIs follow symlinks, a symlink nested inside an allowed source directory can point outside the allowed filesystem root and cause outside file contents to be copied into an allowed destination as a regular file. This vulnerability is fixed in 1.13.0.

Metrics

CVSS 3.1

2.5/10

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.19%

9.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-59

Affected Software

Vendor	Product	Versions
Mintplexlabs	Anythingllm	< 1.13.0

References

https://github.com/Mintplex-Labs/anything-llm/commit/21ce03087145a4261c1de03b056fba639f699c09Patch
https://github.com/Mintplex-Labs/anything-llm/security/advisories/GHSA-vjrp-43mm-j7vwExploit, Mitigation, Vendor Advisory
https://github.com/Mintplex-Labs/anything-llm/security/advisories/GHSA-vjrp-43mm-j7vwExploit, Mitigation, Vendor Advisory

Timeline

Published: May 28, 2026
Last Modified: Jul 21, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-45403?

AnythingLLM is an application that turns pieces of content into context that any LLM can use as references during chatting. Prior to 1.13.0, the AnythingLLM agent filesystem copy tool validates only the top-level source and destination paths. The recursive copy helper then descends into child entries using fs.stat() and copies files with fs.copyFile() without validating each child or rejecting symlinks. Because both APIs follow symlinks, a symlink nested inside an allowed source directory can point outside the allowed filesystem root and cause outside file contents to be copied into an allowed destination as a regular file. This vulnerability is fixed in 1.13.0.

How severe is CVE-2026-45403?

CVE-2026-45403 has a CVSS score of 2.5/10 (LOW severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.

How do I fix CVE-2026-45403?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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