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CVE-2026-71271

Memos Webhook SSRF via 0.0.0.0 Reserved-IP Bypass PUBLISHED

Description (CNA)

Memos' webhook URL validation, isReservedIP (internal/webhook/validate.go), checks a candidate IP against a reservedCIDRs list that omits 0.0.0.0/8 and never calls ip.IsUnspecified — unlike the correctly implemented sibling function isInternalIP in internal/httpgetter/html_meta.go, which does.

Affected (CNA)

Vendor / productVersions
usememos / memosaffected 0 through 0.29.1

CWE

CWE-918

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.