CVE-2026-114102

adm-zip before 0.6.1 contains a denial of service vulnerability that allows unauthenticated attackers to crash the Node.js process via a malformed ZIP file, because inflateAsync in methods/inflater.js lacks a zlib stream error listener. Attackers can supply a ZIP with corrupted DEFLATE data processed by readFileAsync, readAsTextAsync, extractAllToAsync, or getDataAsync, triggering an uncatchable exception that terminates all in-flight requests.

CVSS 4.0

8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-25)

CWE

CWE-248

Published

2026-10-21

Modified

2026-10-22

Record from

the NVD, synced 2026-10-22

Packages (OSV)

References

• https://github.com/cthackers/adm-zip/security/advisories/GHSA-8238-w5pm-2374
• https://www.vulncheck.com/advisories/adm-zip-before-0.6.1-denial-of-service-via-inflateasync-unhandled-error-event
• https://github.com/cthackers/adm-zip/security/advisories/GHSA-8238-w5pm-2374

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