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NVD / CVE Program· CNA apache

CVE-2021-35515: Apache Commons Compress 1.6 to 1.20 denial of service vulnerability

HighCVSS 7.5 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 33/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 11.5% (FIRST EPSS); higher than 96% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: libcommons-compress-java (Debian:12) 1.21-1; org.apache.commons:commons-compress (Maven) 1.21; apache-commons-compress (openSUSE:Leap 15.2) 1.21-lp152.2.3.1.
  • Mentioned 4 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to libcommons-compress-java (Debian:12) 1.21-1; org.apache.commons:commons-compress (Maven) 1.21; apache-commons-compress (openSUSE:Leap 15.2) 1.21-lp152.2.3.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

When reading a specially crafted 7Z archive, the construction of the list of codecs that decompress an entry can result in an infinite loop. This could be used to mount a denial of service attack against services that use Compress' sevenz package.

Published
Jul 13, 2021
Updated
Jun 16, 2026
EPSS
11.5% · 96th percentile

Report tools

JSON

Action score

33

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
3 / 30 · 11.5%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2021-35515

When you'll hear from us

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  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
apachecommons compress
netappactive iq unified manager
netapponcommand insight
oraclebanking digital experience
oraclebanking enterprise default management
oraclebanking party management
oraclebanking payments
oraclebanking trade finance
oraclebanking treasury management
oraclebusiness process management suite
oraclecommerce guided search
oraclecommunications billing and revenue management

and 14 more

Versions reported by the vendor

Affected version ranges reported by the assigning authority (apache). Independent of NVD's CPE analysis and usually ahead of it.

  • Apache Software Foundation Apache Commons Compress

    • 1.6 and later · before Apache Commons Compress*affected
Affected versions · NVD (20)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • apache commons compress1.6 and later · up to 1.20 inclusive
  • netapp active iq unified managerall versions
  • netapp oncommand insightall versions
  • oracle banking digital experience18.1 and later · up to 18.3 inclusive
  • oracle banking digital experience19.1
  • oracle banking digital experience20.1
  • oracle banking digital experience21.1
  • oracle banking enterprise default management2.7.0
  • oracle banking party management2.7.0
  • oracle banking payments14.5
  • oracle banking trade finance14.5
  • oracle banking treasury management14.5
  • oracle business process management suite12.2.1.3.0
  • oracle business process management suite12.2.1.4.0
  • oracle commerce guided search11.3.2
  • oracle communications billing and revenue management12.0.0.4
  • oracle communications cloud native core automated test suite1.8.0
  • oracle communications cloud native core service communication proxy1.14.0
  • oracle communications cloud native core unified data repository1.14.0
  • oracle communications diameter intelligence hub8.0.0 and later · up to 8.2.3 inclusive

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12libcommons-compress-javabefore 1.21-11.21-1
Mavenorg.apache.commons:commons-compressbefore 1.211.21
openSUSE:Leap 15.2apache-commons-compressbefore 1.21-lp152.2.3.11.21-lp152.2.3.1
openSUSE:Leap 15.3apache-commons-compressbefore 1.21-3.3.11.21-3.3.1
openSUSE:Tumbleweedapache-commons-compressbefore 1.21-1.21.21-1.2
Red Hat:rhev_manager:4.4:el8apache-commons-compressbefore 0:1.21-1.2.el8ev0:1.21-1.2.el8ev
Red Hat:rhev_manager:4.4:el8apache-commons-compress-javadocbefore 0:1.21-1.2.el8ev0:1.21-1.2.el8ev
Red Hat:rhev_manager:4.4:el8ovirt-dependenciesbefore 0:4.5.2-1.el8ev0:4.5.2-1.el8ev
Red Hat:rhev_manager:4.4:el8ovirt-web-uibefore 0:1.9.0-1.el8ev0:1.9.0-1.el8ev
SUSE:Linux Enterprise Module for Development Tools 15 SP2apache-commons-compressbefore 1.21-3.3.11.21-3.3.1

Same product

apache: all records

Other highest-scoring records for the same primary product.

  • CVE-2019-12402The file name encoding algorithm used internally in Apache Commons Compress 1.15 to 1.18 can get into an infinite loop when faced with…
    35Monitor
  • CVE-2021-36090Apache Commons Compress 1.0 to 1.20 denial of service vulnerability
    34Monitor
  • CVE-2021-35516Apache Commons Compress 1.6 to 1.20 denial of service vulnerability
    34Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2018-1324Mar 16, 2018 · A specially crafted ZIP archive can be used to cause an infinite loop inside of Apache Commons Compress' extra field parser used by the…
    23Monitor
  • ← EarlierCVE-2018-11771Aug 16, 2018 · When reading a specially crafted ZIP archive, the read method of Apache Commons Compress 1.7 to 1.17's ZipArchiveInputStream can fail to…
    24Monitor
  • Later →CVE-2021-35517Jul 13, 2021 · Apache Commons Compress 1.1 to 1.20 denial of service vulnerability
    33Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:libcommons-compress-java1.21-1 · Debian:12Package registry (OSV)
Maven:org.apache.commons:commons-compress1.21Package registry (OSV)
opensuse:apache-commons-compress1.21-lp152.2.3.1 · openSUSE:Leap 15.2Package registry (OSV)
red hat:apache-commons-compress0:1.21-1.2.el8ev · Red Hat:rhev_manager:4.4:el8Package registry (OSV)
red hat:apache-commons-compress-javadoc0:1.21-1.2.el8ev · Red Hat:rhev_manager:4.4:el8Package registry (OSV)
red hat:ovirt-dependencies0:4.5.2-1.el8ev · Red Hat:rhev_manager:4.4:el8Package registry (OSV)
red hat:ovirt-web-ui0:1.9.0-1.el8ev · Red Hat:rhev_manager:4.4:el8Package registry (OSV)
suse:apache-commons-compress1.21-3.3.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP2Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Not on record for this CVE: EPSS history · patch commit or PR link · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-834 · Excessive Iteration

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Show all references (19 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records