CVE Explorer

CVE-2026-47203

Authelia is an open-source authentication and authorization server providing two-factor authentication and single sign-on (SSO) for applications via a web portal. In versions 4.38.0 through 4.39.19, when a user authenticates via Basic Auth (i.e via the `Authorization` header with the `Basic` scheme) on the authz verification endpoint, Authelia takes the username directly from the `Authorization` header and passes it as is to the regulation system for ban checking and attempt recording. LDAP trea

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:dccb9fcb7cc2eb4d445f4783e505f3e52e44b3f95f06fa90e0c3337177c47a18

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-178","description":"CWE-178: Improper Handling of Case Sensitivity","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:208dba105b85ca051b8ac11dda23e5f35a43103b205f6f66d45cea73c12b5618 · sha256:8d9458b79c06f8bf… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-307","description":"CWE-307: Improper Restriction of Excessive Authentication Attempts","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:208dba105b85ca051b8ac11dda23e5f35a43103b205f6f66d45cea73c12b5618 · sha256:8d9458b79c06f8bf… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion

{"product":"authelia","vendor":"authelia","versions":[{"status":"affected","version":">= 4.38.0, < 4.39.20"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:208dba105b85ca051b8ac11dda23e5f35a43103b205f6f66d45cea73c12b5618 · sha256:8d9458b79c06f8bf… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"HIGH","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":2.9,"baseSeverity":"LOW","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:208dba105b85ca051b8ac11dda23e5f35a43103b205f6f66d45cea73c12b5618 · sha256:8d9458b79c06f8bf… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions

{"cweId":"CWE-178","description":"CWE-178: Improper Handling of Case Sensitivity","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:208dba105b85ca051b8ac11dda23e5f35a43103b205f6f66d45cea73c12b5618 · sha256:8d9458b79c06f8bf… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-307","description":"CWE-307: Improper Restriction of Excessive Authentication Attempts","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:208dba105b85ca051b8ac11dda23e5f35a43103b205f6f66d45cea73c12b5618 · sha256:8d9458b79c06f8bf… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/authelia/authelia/commit/b8985b57b70acdff8f204ed426ff619e763461ad","tags":["x_refsource_MISC"],"url":"https://github.com/authelia/authelia/commit/b8985b57b70acdff8f204ed426ff619e763461ad"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:208dba105b85ca051b8ac11dda23e5f35a43103b205f6f66d45cea73c12b5618 · sha256:8d9458b79c06f8bf… · /containers/cna/references/1

{"name":"https://github.com/authelia/authelia/security/advisories/GHSA-hjj4-hfjm-fmrj","tags":["x_refsource_CONFIRM"],"url":"https://github.com/authelia/authelia/security/advisories/GHSA-hjj4-hfjm-fmrj"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:208dba105b85ca051b8ac11dda23e5f35a43103b205f6f66d45cea73c12b5618 · sha256:8d9458b79c06f8bf… · /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.

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