CVE-2026-42886

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Source
https://cve.org/CVERecord?id=CVE-2026-42886
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42886.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-42886
Aliases
  • GHSA-4jq4-rvq8-j26h
Published
2026-05-11T19:54:10.876Z
Modified
2026-07-08T08:12:34.731040848Z
Severity
  • 4.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Audiobookshelf: Memory amplification DoS via oversized compressed details entry in backup upload
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-409"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42886.json"
}
References

Affected packages

Git / github.com/advplyr/audiobookshelf

Affected ranges

Type
GIT
Repo
https://github.com/advplyr/audiobookshelf
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
b41db23994cb678241e0aeb19681f15ee6739c3a
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.33.2"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

0.*
0.9.61-beta
0.9.61-beta.0
v1.*
v1.0.0
v1.1.10
v1.1.11
v1.1.12
v1.1.13
v1.1.14
v1.1.15
v1.1.8
v1.1.9
v1.2.1
v1.2.4
v1.2.5
v1.2.6
v1.2.8
v1.3.1
v1.3.3
v1.3.4
v1.4.0
v1.4.1
v1.4.11
v1.4.2
v1.4.4
v1.4.6
v1.4.7
v1.4.9
v1.5.0
v1.5.5
v1.6.0
v1.7.0
v1.7.1
v1.7.2
v2.*
v2.0.1
v2.0.10
v2.0.11
v2.0.12
v2.0.13
v2.0.14
v2.0.15
v2.0.16
v2.0.17
v2.0.18
v2.0.19
v2.0.2
v2.0.20
v2.0.21
v2.0.22
v2.0.23
v2.0.24
v2.0.3
v2.0.4
v2.0.5
v2.0.6
v2.0.7
v2.0.8
v2.0.9
v2.1.0
v2.1.1
v2.1.2
v2.1.3
v2.1.4
v2.1.5
v2.10.0
v2.10.1
v2.11.0
v2.12.0
v2.12.1
v2.12.2
v2.12.3
v2.13.0
v2.13.1
v2.13.2
v2.13.3
v2.13.4
v2.14.0
v2.15.0
v2.15.1
v2.16.0
v2.16.1
v2.16.2
v2.17.0
v2.17.1
v2.17.2
v2.17.3
v2.17.4
v2.17.5
v2.17.6
v2.17.7
v2.18.0
v2.18.1
v2.19.0
v2.19.1
v2.19.2
v2.19.3
v2.19.4
v2.19.5
v2.2.0
v2.2.1
v2.2.10
v2.2.11
v2.2.12
v2.2.13
v2.2.14
v2.2.15
v2.2.16
v2.2.17
v2.2.18
v2.2.19
v2.2.2
v2.2.20
v2.2.21
v2.2.22
v2.2.23
v2.2.3
v2.2.4
v2.2.5
v2.2.6
v2.2.7
v2.2.8
v2.2.9
v2.20.0
v2.21.0
v2.22.0
v2.23.0
v2.24.0
v2.25.0
v2.25.1
v2.26.0
v2.26.1
v2.26.2
v2.26.3
v2.27.0
v2.28.0
v2.29.0
v2.3.0
v2.3.1
v2.3.2
v2.3.3
v2.3.4
v2.3.5
v2.30.0
v2.31.0
v2.32.0
v2.32.1
v2.33.0
v2.33.1
v2.4.0
v2.4.1
v2.4.2
v2.4.3
v2.4.4
v2.5.0
v2.6.0
v2.7.0
v2.7.1
v2.7.2
v2.8.0
v2.8.1
v2.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42886.json"