{"id":"CVE-2026-123816","summary":"pyLoad: Authentication bypass in API key validation (check_apikey cache)","details":"pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev101, Api.check_apikey caches successful validation in self._apikey_cache using only the attacker-controlled key_id. After a legitimate key populates the cache, a forged API key with the same key_id reaches the cache-hit path without comparing apikey[-43:] to the stored hash through hmac.compare_digest. Key identifiers are small sequential integers, so an unauthenticated remote attacker can enumerate an active identifier and inherit the cached key owner's permissions during the 300-second cache lifetime. This issue is fixed in version 0.5.0b3.dev101.","aliases":["GHSA-r44w-v6gf-x3p6"],"modified":"2026-11-10T10:46:29.093242777Z","published":"2026-11-09T21:15:48.314Z","database_specific":{"cwe_ids":["CWE-287"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/123xxx/CVE-2026-123816.json","unresolved_ranges":[{"extracted_events":[{"source":"AFFECTED_FIELD","strategy":"StringRangeExpression","range":[{"fixed":"0.5.0b3.dev101"}]}]},{"extracted_events":[{"source":"DESCRIPTION","range":[{"fixed":"0.5.0b3.dev101"},{"fixed":"0.5.0b3.dev101"}]}]}],"cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/123xxx/CVE-2026-123816.json"},{"type":"FIX","url":"https://github.com/pyload/pyload/commit/00d1372510f915f843b1574a3f1b28fbb724a42e"},{"type":"ADVISORY","url":"https://github.com/pyload/pyload/security/advisories/GHSA-r44w-v6gf-x3p6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123816"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pyload/pyload","events":[{"introduced":"0"},{"fixed":"00d1372510f915f843b1574a3f1b28fbb724a42e"}],"database_specific":{"extracted_events":[{"range":[{"fixed":"00d1372510f915f843b1574a3f1b28fbb724a42e"}],"source":"REFERENCES_COMMIT"}]}}],"versions":["v0.4.9","v0.4.8","v0.4.7","v0.4.6","v0.4.5","v0.4.4","v0.4.3","v0.4.2","v0.4.1","v0.4","v0.3.2","v0.3.1","v0.3","v0.2.2","v0.2.1","v0.2","v0.1.1","v0.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-123816.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}