CVE-2026-71271

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Source
https://cve.org/CVERecord?id=CVE-2026-71271
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71271.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-71271
Published
2026-08-05T12:26:18.502Z
Modified
2026-08-11T03:46:59.397794879Z
Severity
  • 8.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N CVSS Calculator
Summary
Memos Webhook SSRF via 0.0.0.0 Reserved-IP Bypass
Details

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.

Database specific 
{
    "cna_assigner": "TuranSec",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71271.json",
    "cwe_ids": [
        "CWE-918"
    ]
}
References

Affected packages

Git / github.com/usememos/memos

Affected ranges

Type
GIT
Repo
https://github.com/usememos/memos
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
5f194da7d3f71a428b437898cdfd073c66a3df38
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "0.29.1"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

v0.*
v0.1.2
v0.10.2
v0.10.3
v0.11.0
v0.11.1
v0.11.2
v0.12.0
v0.12.1
v0.12.2
v0.13.0
v0.13.1
v0.13.2
v0.14.0
v0.14.1
v0.14.2
v0.14.3
v0.14.4
v0.15.0
v0.15.1
v0.15.2
v0.16.0
v0.16.1
v0.17.1
v0.18.0
v0.18.1
v0.18.2
v0.19.0
v0.19.1
v0.20.0
v0.20.1
v0.21.0
v0.22.0
v0.22.1
v0.22.2
v0.22.3
v0.22.4
v0.22.5
v0.23.0
v0.23.0-rc.0
v0.23.0-rc.1
v0.23.0-rc.2
v0.23.0-rc.3
v0.23.1
v0.24.0
v0.24.1
v0.24.2
v0.24.3
v0.24.4
v0.25.0
v0.25.1
v0.25.2
v0.25.3
v0.26.0
v0.26.1
v0.26.2
v0.27.0
v0.27.0-rc.1
v0.27.0-rc.2
v0.27.1
v0.28.0
v0.29.0
v0.29.1
v0.4.0
v0.4.1
v0.4.2
v0.4.3
v0.5.0
v0.6.0
v0.6.1
v0.7.0
v0.7.1
v0.7.2
v0.7.3
v0.8.0
v0.8.1
v0.8.2
v0.8.3
v0.9.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71271.json"