CVE-2025-66450
mediumpriority · track · 22EPSS 0.002 · 11 %ileEUUSEPSS · scored 2026-10-23
LibreChat is a ChatGPT clone with additional features. In versions 0.8.0 and below, when a user posts a question, the iconURL parameter of the POST request can be modified by an attacker. The malicious code is then stored in the chat which can then be shared to other users. When sharing chats with a potentially malicious “tracker”, resources loaded can lead to loss of privacy for users who view the chat link that is sent to them. This issue is fixed in version 0.8.1.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.4–8.6
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://github.com/danny-avila/LibreChat/commit/6fa94d3eb8f5779363226d10dccf8b01a735744ccnnvd
- https://github.com/danny-avila/LibreChat/releasesPatchcnnvd
- https://github.com/danny-avila/LibreChat/security/advisories/GHSA-84vx-vmcf-xgppcnnvd
- https://github.com/danny-avila/LibreChat/commit/6fa94d3eb8f5779363226d10dccf8b01a735744cenisa_euvd
- https://github.com/danny-avila/LibreChat/security/advisories/GHSA-84vx-vmcf-xgppenisa_euvd
- https://github.com/danny-avila/LibreChat/commit/6fa94d3eb8f5779363226d10dccf8b01a735744cPatchnvd
- https://github.com/danny-avila/LibreChat/security/advisories/GHSA-84vx-vmcf-xgppExploitVendor Advisorynvd
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