{"action":"Upgrade @astrojs/rss to 4.0.19 or later.","affected":[{"fixed":"4.0.19","introduced":"1.0.0"}],"component":"@astrojs/rss","cve_ids":["CVE-2026-59728"],"ecosystem":"npm","epss":0.00322,"exploited":false,"fixed_versions":["4.0.19"],"ghsa_id":"GHSA-8j5q-mfj2-5q9q","id":"tcs_01M5KFD7QN7BW6DHVBG3S2VMRJ","modified_at":"2026-08-12T20:45:07.738233105Z","published_at":"2026-07-20T23:21:47Z","references":["https://osv.dev/vulnerability/GHSA-8j5q-mfj2-5q9q","https://github.com/withastro/astro/security/advisories/GHSA-8j5q-mfj2-5q9q","https://nvd.nist.gov/vuln/detail/CVE-2026-59728","https://github.com/withastro/astro/pull/17209","https://github.com/withastro/astro/commit/fbcfa039dfe3d700b239f595a6c55ee35e45bd06","https://github.com/withastro/astro","https://github.com/withastro/astro/releases/tag/@astrojs/rss@4.0.19"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"GHSA-8j5q-mfj2-5q9q","url":"https://osv.dev/vulnerability/GHSA-8j5q-mfj2-5q9q"}],"summary":"@astrojs/rss: XML Injection via Unescaped RSS Feed Fields"}