Medium severity6.5NVD Advisory· Published Mar 20, 2020· Updated Jun 17, 2026

CVE-2020-8138

Description

A missing check for IPv4 nested inside IPv6 in Nextcloud server < 17.0.1, < 16.0.7, and < 15.0.14 allowed a Server-Side Request Forgery (SSRF) vulnerability when subscribing to a malicious calendar URL.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Nextcloud/Server
cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*
Range: <15.0.14
Nextcloud/Nextcloud Enterprise Serverllm-fuzzy
Range: <17.0.1, <16.0.7, and <15.0.14
Nextcloud/Nextcloudv5
Range: Fixed in 17.0.2, 16.0.7, and 15.0.14

Patches

Vulnerability mechanics

References

hackerone.com/reports/736867nvdExploitThird Party Advisory
nextcloud.com/security/advisory/nvdThird Party Advisory

News mentions

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cvss	0.423
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000