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CVE-2021-36090

Apache Commons Compress 1.0 to 1.20 denial of service vulnerability

High7.5EPSS 12.9%
Published
Updated
Reserved
Assigned by
apache

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.

Timeline

  1. ID reserved

    By apache

  2. · 12 days later

    Published

  3. · 5 years later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2021-36090, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
12.9% · top 3.7% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

Affected products

Affected packages

From reviewed advisories of the GitHub Advisory Database.

What to do

Workaround: Commons Compress users should upgrade to 1.21 or later.

References (34)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .