{"id":"CVE-2026-55160","summary":"Authenticated Server-Side Request Forgery (SSRF) via feed URL in Stringer","details":"Stringer is a self-hosted, anti-social RSS reader. Prior to commit 75cb095, an unrestricted Server-Side Request Forgery (SSRF) vulnerability allows any authenticated user to force the Stringer server to send arbitrary HTTP/HTTPS requests to internal networks, localhost services, and cloud metadata endpoints (e.g. AWS IMDS 169.254.169.254). When self-service signup is enabled (Setting::UserSignup), even a low-privileged registered user can exploit this to scan internal services or steal cloud IAM credentials. This issue has been patched via commit 75cb095.","aliases":["GHSA-496x-437q-h35q"],"modified":"2026-10-02T03:30:31.251176398Z","published":"2026-09-28T17:52:24.490Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55160.json","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"fixed":"75cb0955919a362ac49d23c8a14892d0f59ea1c4"}]}],"cna_assigner":"GitHub_M","cwe_ids":["CWE-918"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55160.json"},{"type":"ADVISORY","url":"https://github.com/stringer-rss/stringer/security/advisories/GHSA-496x-437q-h35q"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55160"},{"type":"FIX","url":"https://github.com/stringer-rss/stringer/commit/75cb0955919a362ac49d23c8a14892d0f59ea1c4"},{"type":"FIX","url":"https://github.com/stringer-rss/stringer/pull/1548"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/stringer-rss/stringer","events":[{"introduced":"0"},{"fixed":"75cb0955919a362ac49d23c8a14892d0f59ea1c4"}],"database_specific":{"source":"REFERENCES"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-55160.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:H/I:L/A:L"}]}