High 7.5HealthcarePublished Jul 13, 2021

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

Updated under an hour ago (Oct 27, 2026, 6:50 PM ET)

Does this affect you?

It affects Apache Software Foundation Apache Commons Compress and 26 other products. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 11.57%, higher than 96% of scored CVEs. That is high: schedule it on your emergency patch path.

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Every CVE for Apache Software Foundation Apache Commons Compress

Exploited in the last 30 days

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.

CVSS: 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-834
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 11.57% (percentile 96)
Assigned by: apache
NVD analysis: Modified
Record last updated: Aug 3, 2024
First seen by InfoSec Signals: Oct 12, 2026

Affected products

Affected products

Apache Software Foundation Apache Commons Compress apache_software_foundation:apache_commons_compress (from the name)	from 1.6 before Apache Commons Compress*	CNA record
apache commons_compress apache:commons_compress	from 1.6 through 1.20	NVD
netapp active_iq_unified_manager netapp:active_iq_unified_manager	all versions; all versions; all versions	NVD
netapp oncommand_insight netapp:oncommand_insight	all versions	NVD
oracle banking_digital_experience oracle:banking_digital_experience	from 18.1 through 18.3; 19.1; 20.1; 21.1	NVD
oracle banking_enterprise_default_management oracle:banking_enterprise_default_management	2.7.0	NVD
oracle banking_party_management oracle:banking_party_management	2.7.0	NVD
oracle banking_payments oracle:banking_payments	14.5	NVD
oracle banking_trade_finance oracle:banking_trade_finance	14.5	NVD
oracle banking_treasury_management oracle:banking_treasury_management	14.5	NVD
1–10 of 27

References

References

https://commons.apache.org/proper/commons-compress/security-reports.html	x-refsource-misc, vendor-advisory
https://lists.apache.org/thread.html/r19ebfd71770ec0617a9ea180e321ef927b3fefb4c81ec5d1902d20ab%40%3Cuser.commons.apache.org%3E	x-refsource-misc, vendor-advisory
http://www.openwall.com/lists/oss-security/2021/07/13/1	mailing-list, x-refsource-mlist, third-party-advisory
https://lists.apache.org/thread.html/rbaea15ddc5a7c0c6b66660f1d6403b28595e2561bb283eade7d7cd69%40%3Cannounce.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/rb064d705fdfa44b5dae4c366b369ef6597951083196321773b983e71%40%3Ccommits.pulsar.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/rf2f4d7940371a7c7c5b679f50e28fc7fcc82cd00670ced87e013ac88%40%3Ccommits.druid.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/rab292091eadd1ecc63c516e9541a7f241091cf2e652b8185a6059945%40%3Ccommits.druid.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/rbe91c512c5385181149ab087b6c909825d34299f5c491c6482a2ed57%40%3Ccommits.druid.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/rd4332baaf6debd03d60deb7ec93bee49e5fdbe958cb6800dff7fb00e%40%3Cnotifications.skywalking.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/rb7adf3e55359819e77230b4586521e5c6874ce5ed93384bdc14d6aee%40%3Cnotifications.skywalking.apache.org%3E	mailing-list, x-refsource-mlist
1–10 of 21

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.