CVE-2021-36090

Apache Commons Compress 1.0 to 1.20 denial of service vulnerability

HIGH
7.5
CVSS Score
Published: July 13, 2021 at 07:15 AM UTC
Updated: October 8, 2026 at 09:17 PM UTC
34 products affected across 3 vendorsOnCommand InsightActive IQ Unified ManagerPeopleSoft Enterprise PeopleTools

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Severity
HIGH7.5
Exploit prediction
EPSS 13%
SSVC
No known exploit

Description

When reading a specially crafted ZIP archive, Compress can be made to allocate large amounts of memory that finally leads to an out of memory error even for very small inputs. This could be used to mount a denial of service attack against services that use Compress' zip package.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

1.0 ≤ v < 1.21Apache Commons Compress ≤ v ≤ 1.20*Apache Commons Compress
Affected range stops below 1.21, so it looks safe — our inference, not a vendor statement
18.1 ≤ v ≤ 18.3*19.119.220.121.1

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-130NVD-CWE-Other

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