{"action":"Upgrade fastfeedparser to 0.5.10 or later.","affected":[{"fixed":"0.5.10","introduced":"0"}],"component":"fastfeedparser","cve_ids":["CVE-2026-39376"],"ecosystem":"PyPI","epss":0.00328,"exploited":false,"fixed_versions":["0.5.10"],"ghsa_id":"GHSA-4gx2-pc4f-wq37","id":"tcs_01M5KEY7399HWKJ56N6VVYTB6Z","modified_at":"2026-06-06T00:30:10.262659159Z","published_at":"2026-04-08T00:12:26Z","references":["https://osv.dev/vulnerability/GHSA-4gx2-pc4f-wq37","https://github.com/kagisearch/fastfeedparser/security/advisories/GHSA-4gx2-pc4f-wq37","https://nvd.nist.gov/vuln/detail/CVE-2026-39376","https://github.com/kagisearch/fastfeedparser","https://github.com/pypa/advisory-database/tree/main/vulns/fastfeedparser/PYSEC-2026-60.yaml"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-4gx2-pc4f-wq37","url":"https://osv.dev/vulnerability/GHSA-4gx2-pc4f-wq37"}],"summary":"FastFeedParser has an infinite redirect loop DoS via meta-refresh chain"}