Vulnerability DatabaseCVE-2026-82476
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CVE-2026-82476
Published:August 29, 2026
Updated:September 24, 2026
Memos through 0.30.0 omits the 100.64.0.0/10 carrier-grade NAT address range from SSRF protection in its link-metadata fetcher, allowing unauthenticated attackers to bypass IP validation. Attackers can make the server request internal hosts in that range including cloud metadata services and read page titles and descriptions back.
Related Resources (6)
https://nvd.nist.gov/vuln/detail/CVE-2026-82476
https://github.com/usememos/memos/issues/6099
https://github.com/usememos/memos/blob/v0.30.0/internal/httpgetter/html_meta.go
https://github.com/usememos/memos
https://www.vulncheck.com/advisories/memos-through-0.30.0-ssrf-via-omitted-cgnat-address-range
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82476.json
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CVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Server-Side Request Forgery (SSRF)
CWE-918
EPSS
Base Score:
0.25