adm-zip 0.5.14 through 0.6.0 Denial of Service via Zero Declared Uncompressed Size
Priority MEDIUM 45CWE-409Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 4 fixed, 5 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00684 52nd percentileScored 2026-11-07
Fix Partial adm-zip (cthackers): 0.6.1Red Hat: 4 advisoriesRed Hat: 4 fixed, 5 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA adm-zip (cthackers) Fixed in 0.6.1
Red Hat 4 advisories
- RHSA-2026:84734 Released 2026-10-19 · Red Hat rating CriticalRHOAI 3.4.5 - Red Hat OpenShift AI
- Red Hat OpenShift AI 3.4 registry.redhat.io/rhoai/odh-ai-gateway-payload-processing-rhel9, registry.redhat.io/rhoai/odh-automl-rhel9, registry.redhat.io/rhoai/odh-autorag-rhel9 +47
- RHSA-2026:74609 Released 2026-10-01 · Red Hat rating ImportantCluster Observability Operator 1.5.3
- Cluster Observability Operator 1.5 registry.redhat.io/cluster-observability-operator/alertmanager-rhel9, registry.redhat.io/cluster-observability-operator/cluster-observability-rhel9-operator, registry.redhat.io/cluster-observability-operator/distributed-tracing-console-plugin-pf4-rhel9 +13
- RHSA-2026:72722 Released 2026-09-28 · Red Hat rating ImportantAnsible plug-ins for Red Hat Developer Hub Product Release Update
- Red Hat Ansible Automation Platform 2.2 registry.redhat.io/ansible-automation-platform/automation-portal
Show 1 more Red Hat advisories
- RHSA-2026:72712 Released 2026-09-28 · Red Hat rating ImportantAnsible plug-ins for Red Hat Developer Hub Product Release Update
- Red Hat Ansible Automation Platform 2.1 registry.redhat.io/ansible-automation-platform/automation-portal
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Build of Podman Desktop | Affected | No fix yet |
| Red Hat Fuse 7 | Affected | No fix planned: Will not fix |
| Red Hat OpenShift AI (RHOAI) | Affected | No fix yet |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet |
| Cluster Observability Operator 1.5 | Fixed | RHSA-2026:74609 |
| Red Hat Ansible Automation Platform 2.1 | Fixed | RHSA-2026:72712 |
| Red Hat Ansible Automation Platform 2.2 | Fixed | RHSA-2026:72722 |
| Red Hat OpenShift AI 3.4 | Fixed | RHSA-2026:84734 |
Not affected: 9 products
- Cluster Observability Operator 1.5
- Cost Management On Premise
- Red Hat Advanced Cluster Management for Kubernetes 2
- Red Hat Build of Podman Desktop
- Red Hat Developer Hub 1
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift AI 3.4
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2026-92000
- 2026-10-03 Alias added: GHSA-ffxc-vw9f-x2cp
- 2026-10-09 Affected versions changed · Red Hat
- 2026-10-10 Affected versions changed · Red Hat
- 2026-10-12 Affected versions changed · Red Hat
- 2026-10-20 Fix available: RHSA-2026:84734 · Red Hat
- 2026-10-20 Fix available: Red Hat OpenShift AI 3.4 · Red Hat
- 2026-10-27 Affected versions changed · Red Hat
- 2026-10-27 Affected versions changed · Red Hat
- 2026-10-30 Affected versions changed · Red Hat
- 2026-11-05 Fix available: Cluster Observability Operator 1.5 · Red Hat
References
More cthackers vulnerabilities
- TI-2026-78715 Denial of service in adm-zip via unhandled error in inflateAsync CVSS 4.0HIGH 8.7
- TI-2026-53963 adm-zip: Uncontrolled memory allocation via the declared uncompressed size (DoS) CVSS 3.1HIGH 7.5
- TI-2026-78716 Decompression bomb guard bypass in adm-zip exhausts memory CVSS 4.0MEDIUM 6.9
- TI-2026-78717 Duplicate ZIP entry names bypass validation in adm-zip CVSS 4.0HIGH 8.2
- TI-2026-67762 adm-zip extraction keeps setuid bits from untrusted ZIP files CVSS 3.1HIGH 7.1
- TI-2026-78718 Privilege escalation in adm-zip via setuid bits on extracted files CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-92000 · CVE Program
- CVE-2026-92000 · NVD
- FIRST EPSS
- GHSA-ffxc-vw9f-x2cp · GitHub Advisory Database · CC BY 4.0
- CVE-2026-92000 · Red Hat security data · CC BY 4.0
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