{"action":"Upgrade paymenter/paymenter to 1.5.7 or later.","affected":[{"fixed":"1.5.7","introduced":"0"}],"component":"paymenter/paymenter","cve_ids":["CVE-2026-71537"],"ecosystem":"Packagist","epss":0.00325,"exploited":false,"fixed_versions":["1.5.7"],"ghsa_id":"GHSA-5gmm-hjfj-8ff7","id":"tcs_01M5KEW2C694H14R45ZNBAE858","modified_at":"2026-09-18T18:15:06.546129627Z","published_at":"2026-09-18T17:58:55Z","references":["https://osv.dev/vulnerability/GHSA-5gmm-hjfj-8ff7","https://github.com/Paymenter/Paymenter/security/advisories/GHSA-5gmm-hjfj-8ff7","https://github.com/Paymenter/Paymenter/commit/a42e7f8bafce054ad70de3a2c2ac94d13579f41b","https://github.com/Paymenter/Paymenter","https://github.com/Paymenter/Paymenter/releases/tag/v1.5.7"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"GHSA-5gmm-hjfj-8ff7","url":"https://osv.dev/vulnerability/GHSA-5gmm-hjfj-8ff7"}],"summary":"Paymenter has a credit-refund double-spend race condition in service downgrade (doUpgrade)"}