---
id: CVE-2021-35517
title: >-
  When reading a specially crafted TAR 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
summary: >-
  When reading a specially crafted TAR 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
  agains…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-130
  - CWE-770
vendor: apache
product: commons_compress
affected:
  - 'commons_compress >= 1.1, <= 1.20'
  - active_iq_unified_manager
  - oncommand_insight
  - 'banking_apis >= 18.1, <= 18.3'
  - banking_apis = 19.1
  - banking_apis = 19.2
  - banking_apis = 20.1
  - banking_apis = 21.1
  - 'banking_digital_experience >= 18.1, <= 18.3'
  - banking_digital_experience = 19.1
  - banking_digital_experience = 19.2
  - banking_digital_experience = 20.1
  - banking_digital_experience = 21.1
  - banking_enterprise_default_management = 2.7.0
  - banking_party_management = 2.7.0
  - banking_payments = 14.5
  - banking_trade_finance = 14.5
  - banking_treasury_management = 14.5
  - business_process_management_suite = 12.2.1.3.0
  - business_process_management_suite = 12.2.1.4.0
  - commerce_guided_search = 11.3.2
  - communications_billing_and_revenue_management = 12.0.0.4
  - communications_cloud_native_core_service_communication_proxy = 1.14.0
  - communications_cloud_native_core_unified_data_repository = 1.14.0
  - 'communications_diameter_intelligence_hub >= 8.0.0, <= 8.2.3'
  - 'communications_session_route_manager >= 8.0.0, <= 8.2.5'
  - financial_services_crime_and_compliance_management_studio = 8.0.8.2.0
  - financial_services_crime_and_compliance_management_studio = 8.0.8.3.0
  - financial_services_enterprise_case_management = 8.0.7.2.0
  - financial_services_enterprise_case_management = 8.0.8.1.0
  - 'flexcube_universal_banking >= 14.0.0, <= 14.3.0'
  - flexcube_universal_banking = 12.4
  - flexcube_universal_banking = 14.5
  - healthcare_data_repository = 8.1.0
  - insurance_policy_administration = 11.0.2
  - insurance_policy_administration = 11.1.0
  - insurance_policy_administration = 11.2.8
  - insurance_policy_administration = 11.3.0
  - insurance_policy_administration = 11.3.1
  - peoplesoft_enterprise_peopletools = 8.57
  - peoplesoft_enterprise_peopletools = 8.58
  - peoplesoft_enterprise_peopletools = 8.59
  - 'primavera_unifier >= 17.7, <= 17.12'
  - primavera_unifier = 18.8
  - primavera_unifier = 19.12
  - primavera_unifier = 20.12
  - utilities_testing_accelerator = 6.0.0.1.1
  - utilities_testing_accelerator = 6.0.0.2.2
  - utilities_testing_accelerator = 6.0.0.3.1
  - webcenter_portal = 12.2.1.3.0
  - webcenter_portal = 12.2.1.4.0
  - communications_messaging_server = 8.1
published: '2021-07-13'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T22:17:10.310'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2021-35517'
references:
  - url: 'http://www.openwall.com/lists/oss-security/2021/07/13/3'
    label: security@apache.org
  - url: 'http://www.openwall.com/lists/oss-security/2021/07/13/5'
    label: security@apache.org
  - url: 'https://commons.apache.org/proper/commons-compress/security-reports.html'
    label: security@apache.org
  - url: >-
      https://lists.apache.org/thread.html/r31f75743ac173b0a606f8ea6ea53f351f386c44e7bcf78ae04007c29%40%3Cissues.flink.apache.org%3E
    label: security@apache.org
  - url: >-
      https://lists.apache.org/thread.html/r457b2ed564860996b20d938566fe8bd4bfb7c37be8e205448ccb5975%40%3Cannounce.apache.org%3E
    label: security@apache.org
  - url: >-
      https://lists.apache.org/thread.html/r54afdab05e01de970649c2d91a993f68a6b00cd73e6e34e16c832d46%40%3Cuser.ant.apache.org%3E
    label: security@apache.org
  - url: >-
      https://lists.apache.org/thread.html/r605d906b710b95f1bbe0036a53ac6968f667f2c249b6fbabada9a940%40%3Cuser.commons.apache.org%3E
    label: security@apache.org
  - url: >-
      https://lists.apache.org/thread.html/r67ef3c07fe3b8c1b02d48012149d280ad6da8e4cec253b527520fb2b%40%3Cdev.poi.apache.org%3E
    label: security@apache.org
  - url: >-
      https://lists.apache.org/thread.html/r9f54c0caa462267e0cc68b49f141e91432b36b23348d18c65bd0d040%40%3Cnotifications.skywalking.apache.org%3E
    label: security@apache.org
  - url: >-
      https://lists.apache.org/thread.html/ra393ffdc7c90a4a37ea023946f390285693795013a642d80fba20203%40%3Cannounce.apache.org%3E
    label: security@apache.org
  - url: >-
      https://lists.apache.org/thread.html/racd0c0381c8404f298b226cd9db2eaae965b14c9c568224aa3f437ae%40%3Cnotifications.skywalking.apache.org%3E
    label: security@apache.org
  - url: >-
      https://lists.apache.org/thread.html/rb064d705fdfa44b5dae4c366b369ef6597951083196321773b983e71%40%3Ccommits.pulsar.apache.org%3E
    label: security@apache.org
  - url: >-
      https://lists.apache.org/thread.html/rb6e1fa80d34e5ada45f72655d84bfd90db0ca44ef19236a49198c88c%40%3Cnotifications.skywalking.apache.org%3E
    label: security@apache.org
  - url: >-
      https://lists.apache.org/thread.html/rb7adf3e55359819e77230b4586521e5c6874ce5ed93384bdc14d6aee%40%3Cnotifications.skywalking.apache.org%3E
    label: security@apache.org
  - url: >-
      https://lists.apache.org/thread.html/rba65ed5ddb0586f5b12598f55ec7db3633e7b7fede60466367fbf86a%40%3Cnotifications.skywalking.apache.org%3E
    label: security@apache.org
  - url: >-
      https://lists.apache.org/thread.html/rd4332baaf6debd03d60deb7ec93bee49e5fdbe958cb6800dff7fb00e%40%3Cnotifications.skywalking.apache.org%3E
    label: security@apache.org
  - url: >-
      https://lists.apache.org/thread.html/rfba19167efc785ad3561e7ef29f340d65ac8f0d897aed00e0731e742%40%3Cnotifications.skywalking.apache.org%3E
    label: security@apache.org
  - url: 'https://security.netapp.com/advisory/ntap-20211022-0001/'
    label: security@apache.org
  - url: 'https://www.oracle.com/security-alerts/cpuapr2022.html'
    label: security@apache.org
  - url: 'https://www.oracle.com/security-alerts/cpujan2022.html'
    label: security@apache.org
  - url: 'https://www.oracle.com/security-alerts/cpujul2022.html'
    label: security@apache.org
  - url: 'https://www.oracle.com/security-alerts/cpuoct2021.html'
    label: security@apache.org
  - url: 'http://www.openwall.com/lists/oss-security/2021/07/13/3'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://www.openwall.com/lists/oss-security/2021/07/13/5'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://commons.apache.org/proper/commons-compress/security-reports.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/r31f75743ac173b0a606f8ea6ea53f351f386c44e7bcf78ae04007c29%40%3Cissues.flink.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/r457b2ed564860996b20d938566fe8bd4bfb7c37be8e205448ccb5975%40%3Cannounce.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/r54afdab05e01de970649c2d91a993f68a6b00cd73e6e34e16c832d46%40%3Cuser.ant.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/r605d906b710b95f1bbe0036a53ac6968f667f2c249b6fbabada9a940%40%3Cuser.commons.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/r67ef3c07fe3b8c1b02d48012149d280ad6da8e4cec253b527520fb2b%40%3Cdev.poi.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/r9f54c0caa462267e0cc68b49f141e91432b36b23348d18c65bd0d040%40%3Cnotifications.skywalking.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/ra393ffdc7c90a4a37ea023946f390285693795013a642d80fba20203%40%3Cannounce.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/racd0c0381c8404f298b226cd9db2eaae965b14c9c568224aa3f437ae%40%3Cnotifications.skywalking.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/rb064d705fdfa44b5dae4c366b369ef6597951083196321773b983e71%40%3Ccommits.pulsar.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/rb6e1fa80d34e5ada45f72655d84bfd90db0ca44ef19236a49198c88c%40%3Cnotifications.skywalking.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/rb7adf3e55359819e77230b4586521e5c6874ce5ed93384bdc14d6aee%40%3Cnotifications.skywalking.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/rba65ed5ddb0586f5b12598f55ec7db3633e7b7fede60466367fbf86a%40%3Cnotifications.skywalking.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/rd4332baaf6debd03d60deb7ec93bee49e5fdbe958cb6800dff7fb00e%40%3Cnotifications.skywalking.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/rfba19167efc785ad3561e7ef29f340d65ac8f0d897aed00e0731e742%40%3Cnotifications.skywalking.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security.netapp.com/advisory/ntap-20211022-0001/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.oracle.com/security-alerts/cpuapr2022.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.oracle.com/security-alerts/cpujan2022.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.oracle.com/security-alerts/cpujul2022.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.oracle.com/security-alerts/cpuoct2021.html'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.10614
epssPercentile: 0.95687
ingestedAt: '2026-10-08T23:16:47.321Z'
---

## Overview

When reading a specially crafted TAR 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' tar package.

## Affected

- `commons_compress >= 1.1, <= 1.20`
- `active_iq_unified_manager`
- `oncommand_insight`
- `banking_apis >= 18.1, <= 18.3`
- `banking_apis = 19.1`
- `banking_apis = 19.2`
- `banking_apis = 20.1`
- `banking_apis = 21.1`
- `banking_digital_experience >= 18.1, <= 18.3`
- `banking_digital_experience = 19.1`
- `banking_digital_experience = 19.2`
- `banking_digital_experience = 20.1`
- `banking_digital_experience = 21.1`
- `banking_enterprise_default_management = 2.7.0`
- `banking_party_management = 2.7.0`
- `banking_payments = 14.5`
- `banking_trade_finance = 14.5`
- `banking_treasury_management = 14.5`
- `business_process_management_suite = 12.2.1.3.0`
- `business_process_management_suite = 12.2.1.4.0`
- `commerce_guided_search = 11.3.2`
- `communications_billing_and_revenue_management = 12.0.0.4`
- `communications_cloud_native_core_service_communication_proxy = 1.14.0`
- `communications_cloud_native_core_unified_data_repository = 1.14.0`
- `communications_diameter_intelligence_hub >= 8.0.0, <= 8.2.3`
- `communications_session_route_manager >= 8.0.0, <= 8.2.5`
- `financial_services_crime_and_compliance_management_studio = 8.0.8.2.0`
- `financial_services_crime_and_compliance_management_studio = 8.0.8.3.0`
- `financial_services_enterprise_case_management = 8.0.7.2.0`
- `financial_services_enterprise_case_management = 8.0.8.1.0`
- `flexcube_universal_banking >= 14.0.0, <= 14.3.0`
- `flexcube_universal_banking = 12.4`
- `flexcube_universal_banking = 14.5`
- `healthcare_data_repository = 8.1.0`
- `insurance_policy_administration = 11.0.2`
- `insurance_policy_administration = 11.1.0`
- `insurance_policy_administration = 11.2.8`
- `insurance_policy_administration = 11.3.0`
- `insurance_policy_administration = 11.3.1`
- `peoplesoft_enterprise_peopletools = 8.57`
- `peoplesoft_enterprise_peopletools = 8.58`
- `peoplesoft_enterprise_peopletools = 8.59`
- `primavera_unifier >= 17.7, <= 17.12`
- `primavera_unifier = 18.8`
- `primavera_unifier = 19.12`
- `primavera_unifier = 20.12`
- `utilities_testing_accelerator = 6.0.0.1.1`
- `utilities_testing_accelerator = 6.0.0.2.2`
- `utilities_testing_accelerator = 6.0.0.3.1`
- `webcenter_portal = 12.2.1.3.0`
- `webcenter_portal = 12.2.1.4.0`
- `communications_messaging_server = 8.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
