{"action":"Upgrade github.com/grafana/loki/v3 to 3.6.4 or later.","affected":[{"fixed":"3.6.4","introduced":"0"}],"component":"github.com/grafana/loki/v3","cve_ids":["CVE-2026-21726"],"ecosystem":"Go","epss":0.00409,"exploited":false,"fixed_versions":["3.6.4"],"ghsa_id":"GHSA-497x-rrr9-68jp","id":"tcs_01M5KGHZTGTFESV7MPWX3AJTA1","modified_at":"2026-07-07T22:59:27.802062523Z","published_at":"2026-06-25T18:26:48Z","references":["https://osv.dev/vulnerability/GO-2026-5115","https://github.com/advisories/GHSA-497x-rrr9-68jp","https://nvd.nist.gov/vuln/detail/CVE-2026-21726","https://grafana.com/security/security-advisories/cve-2026-21726"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"GO-2026-5115#Go/github.com/grafana/loki/v3","url":"https://osv.dev/vulnerability/GO-2026-5115"},{"source":"nvd","source_id":"CVE-2026-21726","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21726"}],"summary":"Grafana Loki Path Traversal - CVE-2021-36156 Bypass in github.com/grafana/loki"}