CVE-2026-108735
Miniflux 2.3.0 through 2.3.3 SSRF via Per-Feed Proxy URL
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
Miniflux 2.3.0 through 2.3.3 contains a server-side request forgery vulnerability that allows authenticated users to reach internal addresses by setting a feed's proxy_url. Attackers can point proxy_url at loopback or internal hosts, bypassing FETCHER_ALLOW_PRIVATE_NETWORKS checks to probe internal ports and send proxy-style requests to internal services.
| CWE | CWE-918 |
| Vendor | miniflux |
| Product | miniflux |
| Published | Oct 11, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
miniflux / miniflux
2.3.0 ≤ 2.3.3
References
hackmd.io: https://hackmd.io/@haind03/miniflux-feed-proxy-url-private-network-bypass github.com: https://github.com/miniflux/v2/blob/c4d54f87a81b30aa173fddf05d7ff83ae7da5796/internal/reader/fetcher/request_builder.go#L155-L220 github.com: https://github.com/miniflux/v2/blob/c4d54f87a81b30aa173fddf05d7ff83ae7da5796/internal/urllib/url.go#L64-L72 github.com: https://github.com/miniflux/v2 vulncheck.com: https://www.vulncheck.com/advisories/miniflux-2.3.0-through-2.3.3-ssrf-via-per-feed-proxy-url
Credits
HaiND from the Post and Telecommunication Institute of Technology