Deep Chat through 2.5.1 XSS via Markdown Link Validation Bypass
Deep Chat through 2.5.1 contains a cross-site scripting vulnerability that allows attackers to inject javascript: links because RemarkableConfig.createNew disables Remarkable link validation. Attackers can place crafted Markdown links in AI responses, addMessage content, or loaded history to execute script in the embedding page when victims click them.
CVE-2026-108852
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-108852
Deep Chat
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/OvidijusParsiunas/deep-chat",
"vendor": "OvidijusParsiunas",
"product": "Deep Chat",
"versions": [
{
"status": "affected",
"version": "1.4.7",
"versionType": "semver",
"lessThanOrEqual": "2.5.1"
}
],
"packageURL": "pkg:npm/deep-chat",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-108852
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #20457 · Revision 1
- Added to Heist Feed
- Publisher date