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CVE-2026-54685

FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to version 1.3.2-beta, the `/api/auth/login` authentication endpoint does not execute in constant time. When a non-existent username is supplied, the server returns a `401`/`403` response almost immediately. When a valid username is provided, the server performs a bcrypt password comparison, causing a measurable delay in the response time. Version 1.3.2-beta patches the issue.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7aa1a09ad7420faec7fed69556e522a5055efbc7d12a74e6b78a3448e189d1aa
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"filebrowser","vendor":"gtsteffaniak","versions":[{"status":"affected","version":"< 1.3.2-beta"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e5fa300d2bb7dafc39f0ec8fa50d76540d66552ea7459c94d7f30caabb7ccbeb · sha256:580caad4df1aff56… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:e5fa300d2bb7dafc39f0ec8fa50d76540d66552ea7459c94d7f30caabb7ccbeb · sha256:580caad4df1aff56… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-208","description":"CWE-208: Observable Timing Discrepancy","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e5fa300d2bb7dafc39f0ec8fa50d76540d66552ea7459c94d7f30caabb7ccbeb · sha256:580caad4df1aff56… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/gtsteffaniak/filebrowser/commit/af08800667b874620edc6f44c3e2e64fec7abd85","tags":["x_refsource_MISC"],"url":"https://github.com/gtsteffaniak/filebrowser/commit/af08800667b874620edc6f44c3e2e64fec7abd85"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e5fa300d2bb7dafc39f0ec8fa50d76540d66552ea7459c94d7f30caabb7ccbeb · sha256:580caad4df1aff56… · /containers/cna/references/1
{"name":"https://github.com/gtsteffaniak/filebrowser/releases/tag/v1.3.2-beta","tags":["x_refsource_MISC"],"url":"https://github.com/gtsteffaniak/filebrowser/releases/tag/v1.3.2-beta"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e5fa300d2bb7dafc39f0ec8fa50d76540d66552ea7459c94d7f30caabb7ccbeb · sha256:580caad4df1aff56… · /containers/cna/references/2
{"name":"https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-7789-65hx-f26w","tags":["x_refsource_CONFIRM"],"url":"https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-7789-65hx-f26w"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e5fa300d2bb7dafc39f0ec8fa50d76540d66552ea7459c94d7f30caabb7ccbeb · sha256:580caad4df1aff56… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-7789-65hx-f26w"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e5fa300d2bb7dafc39f0ec8fa50d76540d66552ea7459c94d7f30caabb7ccbeb · sha256:580caad4df1aff56… · /containers/adp/0/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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