{"id":"GHSA-vj2p-7pgw-g2wf","aliases":[],"status":"published","title":"Postiz App has a High-Severity SSRF Vulnerability via Next.js","description":"### Impact\nA successful SSRF attack allows an attacker to:\n- Bypass firewalls to scan and interact with internal network services/ports.\n- Access sensitive cloud metadata services (e.g., AWS IMDS 169.254.169.254) to potentially leak instance credentials.\n- Pivot into the internal network environment where Postiz is hosted.\n\n### Workarounds\nThere are no workarounds known to this, please upgrade to Postiz version `v2.21.1`.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","from":"ghsa"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1395","CWE-918"],"published":"2026-03-27T15:46:53Z","modified":"2026-03-27T16:04:59Z","affected":[{"source":"ghsa","ecosystem":"npm","package":"postiz","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.0.12"}]}]},{"source":"osv","ecosystem":"npm","package":"postiz","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"2.0.12"}]}]}],"references":[{"url":"https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-vj2p-7pgw-g2wf","tags":["web"]},{"url":"https://github.com/vercel/next.js/security/advisories/GHSA-fr5h-rqp8-mj6g","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-34351","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-vj2p-7pgw-g2wf"},{"url":"https://github.com/gitroomhq/postiz-app","tags":["package"]}],"sources":{"ghsa":[{"id":"GHSA-vj2p-7pgw-g2wf","title":"Postiz App has a High-Severity SSRF Vulnerability via Next.js","description":"### Impact\nA successful SSRF attack allows an attacker to:\n- Bypass firewalls to scan and interact with internal network services/ports.\n- Access sensitive cloud metadata services (e.g., AWS IMDS 169.254.169.254) to potentially leak instance credentials.\n- Pivot into the internal network environment where Postiz is hosted.\n\n### Workarounds\nThere are no workarounds known to this, please upgrade to Postiz version `v2.21.1`.","status":"published","published":"2026-03-27T15:46:53Z","modified":"2026-03-27T15:46:54Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-918","CWE-1395"],"updated_at":"2026-11-02T14:39:43.747579Z"}],"osv":[{"id":"GHSA-vj2p-7pgw-g2wf","title":"Postiz App has a High-Severity SSRF Vulnerability via Next.js","description":"### Impact\nA successful SSRF attack allows an attacker to:\n- Bypass firewalls to scan and interact with internal network services/ports.\n- Access sensitive cloud metadata services (e.g., AWS IMDS 169.254.169.254) to potentially leak instance credentials.\n- Pivot into the internal network environment where Postiz is hosted.\n\n### Workarounds\nThere are no workarounds known to this, please upgrade to Postiz version `v2.21.1`.","status":"published","published":"2026-03-27T15:46:53Z","modified":"2026-03-27T16:04:59.024811Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-1395","CWE-918"],"updated_at":"2026-11-02T15:46:57.348035Z"}]}}