{"id":"CVE-2026-26980","aliases":["BIT-ghost-2026-26980","GHSA-w52v-v783-gw97"],"url":"https://o3.security/vulnerability/CVE-2026-26980","summary":"Ghost has a SQL Injection in its Content API","details":"### Impact\n\nA SQL injection vulnerability existed in Ghost's Content API that allowed unauthenticated attackers to read arbitrary data from the database. \n\n### Vulnerable Versions\n\nThis vulnerability is present in Ghost v3.24.0 to v6.19.0.\n\n### Patches\n\nv6.19.1 contains a fix for this issue. \n\n**Note:** as this vulnerability lets an attacker gain access to a site's API keys, we recommend reviewing staff users and rotating keys. We generally recommend always updating Ghost to its most current version. \n\n### Workarounds\n\nThere is no application-level workaround. The Content API key is public by design, so restricting key access does not mitigate this vulnerability.\n\nAs a temporary mitigation, a reverse proxy or WAF rule can be used to block Content API requests containing `slug%3A%5B` or `slug:[` in the query string filter parameter. Note that this may break legitimate slug filter functionality.\n\n### References\n\nWe thank Nicholas Carlini using Claude, Anthropic for disclosing this vulnerability responsibly. \n\n### For more information\nIf you have any questions or comments about this advisory, email us at [security@ghost.org](mailto:security@ghost.org).","published":"2026-02-20T01:00:51.633Z","modified":"2026-10-28T02:30:41.122741636Z","cvss":{"score":9.4,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":3,"affectedPackages":[{"ecosystem":"npm","name":"ghost","fixedVersion":"6.19.1"}],"fix":{"url":"https://github.com/TryGhost/Ghost/commit/30868d632b2252b638bc8a4c8ebf73964592ed91","label":"TryGhost/Ghost@30868d6"},"references":[{"type":"WEB","url":"https://github.com/TryGhost/Ghost/releases/tag/v6.19.1"},{"type":"ADVISORY","url":"https://blog.xlab.qianxin.com/ghost-cms-page-poisoning-cve-2026-26980/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26980.json"},{"type":"ADVISORY","url":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-w52v-v783-gw97"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-26980"},{"type":"FIX","url":"https://github.com/TryGhost/Ghost/commit/30868d632b2252b638bc8a4c8ebf73964592ed91"},{"type":"WEB","url":"https://blog.xlab.qianxin.com/ghost-cms-page-poisoning-cve-2026-26980"},{"type":"PACKAGE","url":"https://github.com/TryGhost/Ghost"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:30:41.122741636Z"}}