{"id":"UBUNTU-CVE-2026-108735","details":"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.","modified":"2026-10-14T03:22:50.665019704Z","published":"2026-10-13T00:00:00Z","upstream":["CVE-2026-108735"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-108735"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-108735"},{"type":"REPORT","url":"https://github.com/miniflux/v2"},{"type":"REPORT","url":"https://github.com/miniflux/v2/blob/c4d54f87a81b30aa173fddf05d7ff83ae7da5796/internal/reader/fetcher/request_builder.go#L155-L220"},{"type":"REPORT","url":"https://github.com/miniflux/v2/blob/c4d54f87a81b30aa173fddf05d7ff83ae7da5796/internal/urllib/url.go#L64-L72"},{"type":"REPORT","url":"https://hackmd.io/@haind03/miniflux-feed-proxy-url-private-network-bypass"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/miniflux-2.3.0-through-2.3.3-ssrf-via-per-feed-proxy-url"}],"affected":[{"package":{"name":"miniflux","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/miniflux?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.51-1","2.0.51-2","2.0.51-2ubuntu0.1","2.0.51-2ubuntu0.2","2.0.51-2ubuntu0.2+esm1","2.0.51-2ubuntu0.3","2.0.51-2ubuntu0.3+esm1","2.0.51-2ubuntu0.3+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"2.0.51-2ubuntu0.3+esm2","binary_name":"miniflux"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-108735.json"}},{"package":{"name":"miniflux","ecosystem":"Ubuntu:Pro:26.04:LTS","purl":"pkg:deb/ubuntu/miniflux?arch=source&distro=esm-apps%2Fresolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.6-2","2.2.13-1","2.2.16-2","2.2.16-2ubuntu0.26.04.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.2.16-2ubuntu0.26.04.1~esm1","binary_name":"miniflux"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-108735.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}