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cpe:2.3:a:librechat:librechat:0.8.3:rc2:*:*:*:*:*:*

part: a version: 0.8.3 update: rc2

VendorLibrechat (bb616292-ee82-5a16-87fc-6fa13690242e)
ProductLibrechat (12871d92-73fd-5854-96c7-1c6a934fe8cd)
Edition*
Language*
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Target software*
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NotesImported from NVD CPE 2.0 feed

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Vulnerability references

IdentifiercpeApplicabilitySubmitteddb.gcve.eu detailsRationale
CVE:CVE-2026-31943 vulnerable 2026-06-08 07:57:16.136906 LibreChat has SSRF protection bypass via IPv4-mapped IPv6 normalization in isPrivateIP
HIGH (8.5)
LibreChat is a ChatGPT clone with additional features. Prior to version 0.8.3, `isPrivateIP()` in `packages/api/src/auth/domain.ts` fails to detect IPv4-mapped IPv6 addresses in their hex-normalized form, allowing any authenticated user to bypass SSRF protection and make the server issue HTTP requests to internal network resources — including cloud metadata services (e.g., AWS `169.254.169.254`), loopback, and RFC1918 ranges. Version 0.8.3 fixes the issue.
Published: 2026-03-27T19:21:50.653Z
Updated: 2026-03-31T19:10:14.342Z
Reference links
Imported from gcve-enriched-dumps CVE data

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