{"action":"Upgrade github.com/axllent/mailpit to 1.28.1 or later.","affected":[{"fixed":"1.28.1","introduced":"0"}],"component":"github.com/axllent/mailpit","cve_ids":["CVE-2026-21859"],"ecosystem":"Go","epss":0.00813,"exploited":false,"fixed_versions":["1.28.1"],"ghsa_id":"GHSA-8v65-47jx-7mfr","id":"tcs_01M5KF4DDPAM7XE547XYSV10FA","modified_at":"2026-02-03T03:13:30.492241Z","published_at":"2026-01-06T17:44:29Z","references":["https://osv.dev/vulnerability/GHSA-8v65-47jx-7mfr","https://github.com/axllent/mailpit/security/advisories/GHSA-8v65-47jx-7mfr","https://nvd.nist.gov/vuln/detail/CVE-2026-21859","https://github.com/axllent/mailpit/commit/3b9b470c093b3d20b7d751722c1c24f3eed2e19d","https://github.com/axllent/mailpit","https://pkg.go.dev/vuln/GO-2026-4284"],"severity":{"label":"medium","score":5.8},"sources":[{"source":"osv","source_id":"GHSA-8v65-47jx-7mfr","url":"https://osv.dev/vulnerability/GHSA-8v65-47jx-7mfr"}],"summary":"Mailpit Proxy Endpoint has Server-Side Request Forgery (SSRF) vulnerability"}