CVE Explorer
CVE-2026-41479
Authlib is a Python library which builds OAuth and OpenID Connect servers. Prior to 1.6.10 and 1.7.1, Authlib's OAuth 2.0 authorization endpoint can be turned into an unauthenticated open redirect when a request uses an unsupported response_type and supplies an attacker-controlled redirect_uri. The vulnerable behavior happens before client lookup and before any redirect URI validation. As a result, an attacker does not need a valid client registration, an authenticated user, or any prior state.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"authlib","vendor":"authlib","versions":[{"status":"affected","version":"< 1.6.10"},{"status":"affected","version":"= 1.7.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:91fd365b2eaf58fda42c4eda410ce9634a1a7d375a87b915567d18420f55907f · sha256:c6fd12ea2329c931… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:91fd365b2eaf58fda42c4eda410ce9634a1a7d375a87b915567d18420f55907f · sha256:c6fd12ea2329c931… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-601","description":"CWE-601: URL Redirection to Untrusted Site ('Open Redirect')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:91fd365b2eaf58fda42c4eda410ce9634a1a7d375a87b915567d18420f55907f · sha256:c6fd12ea2329c931… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"name":"https://github.com/authlib/authlib/commit/3be08468201a7766a93012ce149ea12822cab096","tags":["x_refsource_MISC"],"url":"https://github.com/authlib/authlib/commit/3be08468201a7766a93012ce149ea12822cab096"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:91fd365b2eaf58fda42c4eda410ce9634a1a7d375a87b915567d18420f55907f · sha256:c6fd12ea2329c931… · /containers/cna/references/1
{"name":"https://github.com/authlib/authlib/security/advisories/GHSA-w8p2-r796-3vmq","tags":["x_refsource_CONFIRM"],"url":"https://github.com/authlib/authlib/security/advisories/GHSA-w8p2-r796-3vmq"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:91fd365b2eaf58fda42c4eda410ce9634a1a7d375a87b915567d18420f55907f · sha256:c6fd12ea2329c931… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.