{"id":"GHSA-j4mr-9xw3-c9jx","aliases":["CLSA-2026-1773533798","ROOT-APP-NPM-GHSA-j4mr-9xw3-c9jx"],"status":"published","title":"Out-of-bounds Read in base64-url","description":"Versions of `base64-url` before 2.0.0 are vulnerable to out-of-bounds read as it allocates uninitialized Buffers when number is passed in input.\n\n\n## Recommendation\n\nUpdate to version 2.0.0 or later.","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-125"],"published":"2019-05-31T23:47:01Z","modified":"2026-10-15T09:47:28Z","fixes":[{"ecosystem":"npm","package":"base64-url","fixed_in":["2.0.0"],"sources":["ghsa","osv"]},{"ecosystem":"TuxCare:npm","package":"base64-url","fixed_in":["1.2.1-tuxcare.1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"base64-url","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.0"}]}]},{"source":"osv","ecosystem":"TuxCare:npm","package":"base64-url","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.2.1-tuxcare.0"},{"fixed":"1.2.1-tuxcare.1"}]}],"versions":["1.2.1"]},{"source":"osv","ecosystem":"npm","package":"base64-url","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.0.0"}]}]}],"references":[{"url":"https://hackerone.com/reports/321692","tags":["web"]},{"url":"https://www.npmjs.com/advisories/660","tags":["web"]},{"url":"https://github.com/advisories/GHSA-j4mr-9xw3-c9jx"}],"sources":{"ghsa":[{"id":"GHSA-j4mr-9xw3-c9jx","title":"Out-of-bounds Read in base64-url","description":"Versions of `base64-url` before 2.0.0 are vulnerable to out-of-bounds read as it allocates uninitialized Buffers when number is passed in input.\n\n\n## Recommendation\n\nUpdate to version 2.0.0 or later.","status":"published","published":"2019-05-31T23:47:01Z","modified":"2023-01-09T05:01:22Z","cwes":["CWE-125"],"updated_at":"2026-11-02T14:36:01.39976Z"}],"osv":[{"id":"CLSA-2026-1773533798","title":"TuxCare security update for base64-url (1 CVE)","description":"TuxCare rebuilt base64-url to address 1 CVE. Fixed in 1.2.1-tuxcare.1.","status":"published","published":"2026-08-04T14:52:12Z","modified":"2026-10-15T09:47:28.182050936Z","updated_at":"2026-11-02T15:43:43.621843Z"},{"id":"GHSA-j4mr-9xw3-c9jx","title":"Out-of-bounds Read in base64-url","description":"Versions of `base64-url` before 2.0.0 are vulnerable to out-of-bounds read as it allocates uninitialized Buffers when number is passed in input.\n\n\n## Recommendation\n\nUpdate to version 2.0.0 or later.","status":"published","published":"2019-05-31T23:47:01Z","modified":"2020-08-31T18:31:43Z","cwes":["CWE-125"],"updated_at":"2026-11-02T15:46:49.977351Z"},{"id":"ROOT-APP-NPM-GHSA-j4mr-9xw3-c9jx","title":"GHSA-j4mr-9xw3-c9jx in base64-url - Patched by Root","description":"Root has patched GHSA-j4mr-9xw3-c9jx in the base64-url package for Root:npm. Multiple fixed versions available.","status":"withdrawn","published":"2026-08-05T13:19:14Z","modified":"2026-08-06T14:00:14.939898428Z","updated_at":"2026-11-02T15:53:27.940619Z"}]}}