CVE-2026-92000 adm-zip 0.5.14 through 0.6.0 Denial of Service via Zero Declared Uncompressed Size

High 8.7 Published Updated

Attackers can cause denial of service in applications using adm-zip by submitting malicious ZIP archives that trigger memory exhaustion.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-92000?

CVE-2026-92000 is a high-severity denial of service vulnerability in cthackers adm-zip, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-409

Which versions are affected by CVE-2026-92000?

2 open source packages ship an affected version, including adm-zip.

PackageAffectedFixed in
adm-zip npmAll versions0.6.1
adm-zip npmAll versions0.6.1

How do I fix CVE-2026-92000?

Upgrade adm-zip to 0.6.1 or later.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-92000 being exploited?

There is no known exploitation of CVE-2026-92000 in the wild and no public exploit code.

Sources

Also known as CLEANSTART-2026-LH18795, CLSA-2026-1790718594, ECHO-7670-6e90-963d, GHSA-ffxc-vw9f-x2cp, GHSA-rcw4-f5rp-g42v, MINI-34hf-xvr3-qjch and 14 more.

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