{"action":"Upgrade github.com/axllent/mailpit to 1.30.0 or later.","affected":[{"fixed":"1.30.0","introduced":"0"}],"component":"github.com/axllent/mailpit","cve_ids":["CVE-2026-45712"],"ecosystem":"Go","epss":0.00336,"exploited":false,"fixed_versions":["1.30.0"],"ghsa_id":"GHSA-w4vj-r5pg-3722","id":"tcs_01M5KFQ4NDBAMAX78CJ8C76TCF","modified_at":"2026-09-02T23:45:04.668401203Z","published_at":"2026-05-19T15:53:52Z","references":["https://osv.dev/vulnerability/GHSA-w4vj-r5pg-3722","https://github.com/axllent/mailpit/security/advisories/GHSA-w4vj-r5pg-3722","https://nvd.nist.gov/vuln/detail/CVE-2026-45712","https://github.com/axllent/mailpit","https://github.com/axllent/mailpit/releases/tag/v1.30.0"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"GHSA-w4vj-r5pg-3722","url":"https://osv.dev/vulnerability/GHSA-w4vj-r5pg-3722"}],"summary":"Mailpit: Concurrent map read & write in proxy CSS rewriter - remote unauth crash (fatal error: concurrent map read and map write)"}