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CVE-2026-31943

🗓️ 27 Mar 2026 19:21:50Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 28 Views

LibreChat server forgery bypass via IPv4 mapped IPv6 in isPrivateIP; authenticated users access internal resources; fixed 0.8.3.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-31943
27 Mar 202619:21
attackerkb
circl
Circl
CVE-2026-31943
27 Mar 202621:01
circl
cnnvd
CNNVD
LibreChat 代码问题漏洞
27 Mar 202600:00
cnnvd
cvelist
Cvelist
CVE-2026-31943 LibreChat has SSRF protection bypass via IPv4-mapped IPv6 normalization in isPrivateIP
27 Mar 202619:21
cvelist
euvd
EUVD
EUVD-2026-16764
27 Mar 202619:21
euvd
nvd
NVD
CVE-2026-31943
27 Mar 202620:16
nvd
ptsecurity
Positive Technologies
PT-2026-28429
27 Mar 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-31943
28 Mar 202623:09
redhatcve
vulnrichment
Vulnrichment
CVE-2026-31943 LibreChat has SSRF protection bypass via IPv4-mapped IPv6 normalization in isPrivateIP
27 Mar 202619:21
vulnrichment
NVD
Vulners
Node
OR
librechatlibrechatMatch0.8.3rc1
librechatlibrechatMatch0.8.3rc2
[
  {
    "vendor": "danny-avila",
    "product": "LibreChat",
    "versions": [
      {
        "version": "< 0.8.3",
        "status": "affected"
      }
    ]
  }
]

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17 Jun 2026 10:34Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.18.5
EPSS0.00213
SSVC
28