{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-42886 exists.","fix":"No fix has been published for CVE-2026-42886 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-42886 is a medium-severity denial of service vulnerability in advplyr audiobookshelf, published on 11 May 2026. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-42886 and fix it if it is affected.\n\nWhat it is: CVE-2026-42886 is a medium-severity denial of service vulnerability in advplyr audiobookshelf, published on 11 May 2026. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-42886 exists.\n\nAffected product: advplyr audiobookshelf. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-42886/ (Markdown: https://insights.sbomify.com/CVE-2026-42886/index.md)","id":"CVE-2026-42886","markdown":"https://insights.sbomify.com/CVE-2026-42886/index.md","name":"CVE-2026-42886","record":{"aliases":["GHSA-4jq4-rvq8-j26h"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Audiobookshelf server","requires_auth":"high_privilege","summary":"An admin user can crash the Audiobookshelf server by uploading a crafted ZIP file that causes memory exhaustion during decompression.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":4.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-409","name":"Improper Handling of Highly Compressed Data (Data Amplification)"}],"description":"Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.32.2, the POST /api/backups/upload endpoint decompresses the details entry from an uploaded .audiobookshelf ZIP file entirely into memory using zip.entryData(), with no limit on the decompressed size. The upload middleware also has no file size limit. An admin user can upload a crafted ZIP containing a highly compressed details entry that, when decompressed, consumes hundreds of megabytes or gigabytes of memory, crashing the server process via out-of-memory. This vulnerability is fixed in 2.32.2.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Audiobookshelf: Memory amplification DoS via oversized compressed details entry in backup upload","id":"CVE-2026-42886","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Audiobookshelf: Stored Cross-Site Scripting in Login Page Custom Message","id":"CVE-2026-42887"},"packages":[],"prev":{"headline":"Audiobookshelf: Path prefix bypass in filesystem existence check leaks out-of-scope file existence","id":"CVE-2026-42885"},"products":["audiobookshelf"],"published":"2026-05-11","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-12","vendors":["advplyr"]},"summary":"An admin user can crash the Audiobookshelf server by uploading a crafted ZIP file that causes memory exhaustion during decompression.","url":"https://insights.sbomify.com/CVE-2026-42886/"}