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CVE-2026-71271 (GCVE-0-2026-71271)

Vulnerability from cvelistv5 – Published: 2026-08-05 12:26 – Updated: 2026-08-10 11:46
VLAI
Title
Memos Webhook SSRF via 0.0.0.0 Reserved-IP Bypass
Summary
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.
Severity
8.5 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 15:38 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
usememos memos Affected: 0 , ≤ 0.29.1 (semver)
guessed Create a notification for this product.
Date Public
2026-08-05 12:26
Credits
Alibek Baxtiyorov
Show details on NVD website
To clipboard 

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