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TI-2026-78716 Aliases CVE-2026-114103

Decompression bomb guard bypass in adm-zip exhausts memory

Priority HIGH 70CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
Partial Red Hat: 6 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-400.

Summary

adm-zip versions from 0.6.0 before 0.6.1 contain a decompression bomb guard bypass (CWE-400). The maxOutputLength guard is not applied on the asynchronous getDataAsync() path in methods/inflater.js. An unauthenticated remote attacker can craft ZIP entries with falsified small declared sizes and high-ratio DEFLATE payloads to exhaust memory in applications that read entries asynchronously.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Description from the CNA

adm-zip 0.6.0 contains a decompression bomb protection bypass that allows attackers to evade the maxOutputLength guard by targeting the asynchronous getDataAsync() path in methods/inflater.js. Attackers can craft ZIP entries with falsified small declared sizes and high-ratio DEFLATE payloads to exhaust memory in applications reading entries asynchronously.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00404 34th percentileScored 2026-11-07
Fix Partial adm-zip (cthackers): 0.6.1Red Hat: 6 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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

VendorProductAffected versionsFixed inStatusSource
cthackersadm-zip0.6.0 to before 0.6.10.6.1Patch availableCNA
  • adm-zip Vendorcthackers Affected 0.6.0 to before 0.6.1 Fixed in 0.6.1 Patch available CNA

Remediation

Upgrade cthackers adm-zip to version 0.6.1, which fixes this flaw. The sources list no fixed version for Red Hat Advanced Cluster Management for Kubernetes 2, Red Hat Developer Hub 1, Red Hat Fuse 7, Red Hat OpenShift AI (RHOAI), Red Hat OpenShift Container Platform 4 and Red Hat OpenShift Container Platform 5.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

  • Fix · CNA adm-zip (cthackers) Fixed in 0.6.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    cthackers adm-zip 0.6.1

    4 records Highest priority Priority HIGH 3 HIGH, 1 LOW

    Other records, highest priority first

    • TI-2026-78715 Denial of service in adm-zip via unhandled error in inflateAsyncPriority HIGH 77
    • TI-2026-78717 Duplicate ZIP entry names bypass validation in adm-zipPriority HIGH 69
    • TI-2026-78718 Privilege escalation in adm-zip via setuid bits on extracted filesPriority LOW 29
    Show all 4 records →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Advanced Cluster Management for Kubernetes 2AffectedNo fix planned: Out of support scope
Red Hat Developer Hub 1AffectedNo fix yet: Fix deferred
Red Hat Fuse 7AffectedNo fix planned: Out of support scope
Red Hat OpenShift AI (RHOAI)AffectedNo fix yet: Fix deferred
Red Hat OpenShift Container Platform 4AffectedNo fix yet: Fix deferred
Red Hat OpenShift Container Platform 5AffectedNo fix yet: Fix deferred
Not affected: 5 products
  • Cost Management On Premise
  • Red Hat Build of Podman Desktop
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Self-service automation portal 2

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-114103
  2. 2026-10-21 Affected versions changed · Red Hat
  3. 2026-10-21 CVSS score added · Red Hat
  4. 2026-10-22 Priority changed: MEDIUM → LOW
  5. 2026-10-27 Affected versions changed · Red Hat
  6. 2026-10-27 CISA SSVC decision points changed
  7. 2026-10-27 Priority changed: LOW → HIGH
  8. 2026-10-30 Affected versions changed · Red Hat

References

Advisory 1

  • 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-2026-78717 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-2026-62130 adm-zip 0.5.14 through 0.6.0 Denial of Service via Zero Declared Uncompressed Size CVSS 4.0HIGH 8.7
  • TI-2026-78718 Privilege escalation in adm-zip via setuid bits on extracted files CVSS 4.0MEDIUM 6.9
See all 8 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences