Vulnerability in Cthackers Adm-Zip
CVE-2026-92000
adm-zip versions 0.5.14 through 0.6.0 fail to apply zlib decompression output limits when ZIP entries declare zero uncompressed size. Attackers can craft malicious ZIP archives with highly compressible entries declaring zero size to exhaust memory and cause denial of service.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.007 (52.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/cthackers/adm-zip/security/advisories/GHSA-rcw4-f5rp-g42v (vendor-advisory)
- github.com/cthackers/adm-zip/commit/491600683dacb6cb9fe0718a0eeb9cb5eb49afa6 (patch)
- github.com/cthackers/adm-zip/commit/8bc411184de1b5ca28138c53074fb61119994dde (technical-description, patch)
- github.com/cthackers/adm-zip/blob/v0.6.0/methods/inflater.js (technical-description)
- github.com/cthackers/adm-zip (product)
- www.vulncheck.com/advisories/adm-zip-0.5.14-through-0.6.0-denial-of-service-via… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-92000?
- CVE-2026-92000 is a high-severity vulnerability in Cthackers Adm-Zip, classified under Improper Handling of Highly Compressed Data (Data Amplification). CVSS score: 7.5/10. Published 2026-09-15.
- How severe is CVE-2026-92000?
- High severity. CVSS v3 base score is 7.5 out of 10.