VULNERABILITY INTELLIGENCE
CVE-2026-71271
CVSS score8.5 HIGH
EPSS probability0.33%
CISA KEVNot currently listed
Published2026-08-05
Last modified2026-10-24
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Description
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.
Weakness classification
- 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c: CWE-918