Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/usememos/memos
- https://github.com/usememos/memos/blob/v0.30.0/internal/httpgetter/html_meta.go
- https://github.com/usememos/memos/issues/6099
- https://www.vulncheck.com/advisories/memos-through-0.30.0-ssrf-via-omitted-cgnat
- https://github.com/usememos/memos/issues/6099
FAQ
What is CVE-2026-82476?
CVE-2026-82476 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 ca...
How severe is CVE-2026-82476?
CVE-2026-82476 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-82476?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.