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  5. CVE-2026-48794

CVE-2026-48794: Authelia has an Edge Case Access Control Rule Mismatch

June 26, 2026

Due to lack of canonicalization of domains in very specific edge cases an access control rule may be skipped when it should match a request.

References

  • github.com/advisories/GHSA-j748-h363-wqj8
  • github.com/authelia/authelia/commit/b6d1d60baa02f216fdb19f5dfeaf2e805829508a
  • github.com/authelia/authelia/security/advisories/GHSA-j748-h363-wqj8
  • nvd.nist.gov/vuln/detail/CVE-2026-48794

Code Behaviors & Features

Detect and mitigate CVE-2026-48794 with GitLab Dependency Scanning

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Affected versions

All versions starting from 4.36.0 before 4.39.20

Fixed versions

  • 4.39.20

Solution

Upgrade to version 4.39.20 or above.

Impact 3.5 LOW

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N

Learn more about CVSS

Weakness

  • CWE-178: Improper Handling of Case Sensitivity
  • CWE-863: Incorrect Authorization

Source file

go/github.com/authelia/authelia/v4/CVE-2026-48794.yml

Spotted a mistake? Edit the file on GitLab.

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