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CVE-2026-42883

Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the GET /api/libraries/:id/download endpoint validates that the requesting user has access to the library specified in the URL path, but fetches downloadable items solely by attacker-provided IDs without constraining them to that library. An authenticated user with download permission and access to any one library can exfiltrate the full file contents of items belonging to any other library, including libraries they a
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:fbca706243d26bb719eb92206639e280203ed979a8c7056b9a70484a6eb0c1d6
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"audiobookshelf","vendor":"advplyr","versions":[{"status":"affected","version":"< 2.32.2"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:804e3b5b92010a4fb0353fbf682fb177cd5899446e61ef216b4a2a68eb999bde · sha256:368628637b832653… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:804e3b5b92010a4fb0353fbf682fb177cd5899446e61ef216b4a2a68eb999bde · sha256:368628637b832653… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-863","description":"CWE-863: Incorrect Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:804e3b5b92010a4fb0353fbf682fb177cd5899446e61ef216b4a2a68eb999bde · sha256:368628637b832653… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-6rvg-w3f5-9gq5","tags":["x_refsource_CONFIRM"],"url":"https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-6rvg-w3f5-9gq5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:804e3b5b92010a4fb0353fbf682fb177cd5899446e61ef216b4a2a68eb999bde · sha256:368628637b832653… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/advplyr/audiobookshelf/security/advisories/GHSA-6rvg-w3f5-9gq5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:804e3b5b92010a4fb0353fbf682fb177cd5899446e61ef216b4a2a68eb999bde · sha256:368628637b832653… · /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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