{"id":"CVE-2026-59873","title":"tar: node-tar: Denial of Service via crafted gzip bomb (CVE-2026-59873)","summary":"A flaw was found in node-tar, a tar archive manipulation library for Node.js. This vulnerability allows a remote attacker to craft a small gzip bomb, which, when processed, can lead to the exhaustion of disk space and CPU resources. This o…","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","cvssSource":"vendor","cwe":"CWE-770","vendor":"Red Hat","product":"Red Hat Enterprise Linux AppStream (v. 8)","affected":["confidential_compute_attestation","exploit_intelligence","node_healthcheck_operator","openshift_pipelines","build_of_apache_camel_hawtio 4","build_of_podman_desktop","connectivity_link 1","enterprise_linux 10","enterprise_linux 9","enterprise_linux_ai_rhel_ai 3","hardened_images","openshift_ai_rhoai","openshift_data_foundation 4","single_sign_on 7","trusted_artifact_signer","enterprise_linux_appstream_eus_v_10_0","enterprise_linux_appstream_v_10","enterprise_linux_appstream_v_8","enterprise_linux_appstream_eus_v_9_6","enterprise_linux_appstream_v_9","enterprise_linux_extensions_channel_v_10","amq_broker 7.13.6","amq_broker 7.14.1","ansible_automation_platform 2.2","migration_toolkit 1.8","openshift_ai 2.25","openshift_ai 3.4","openshift_container_platform 4.20","openshift_container_platform 4.21","openshift_container_platform 4.22","openshift_dev_spaces 3.29","openshift_dev_spaces 3.30","openshift_service_mesh 3.0","openshift_service_mesh 3.1","openshift_service_mesh 3.2","openshift_service_mesh 3.3","satellite 6.18","satellite 6.19"],"patched":["enterprise_linux_appstream_eus_v_10_0","enterprise_linux_appstream_v_10","enterprise_linux_appstream_v_8","enterprise_linux_appstream_eus_v_9_6","enterprise_linux_appstream_v_9","enterprise_linux_extensions_channel_v_10","amq_broker 7.13.6","amq_broker 7.14.1","ansible_automation_platform 2.2","migration_toolkit 1.8","openshift_ai 2.25","openshift_ai 3.4","openshift_container_platform 4.20","openshift_container_platform 4.21","openshift_container_platform 4.22","openshift_dev_spaces 3.29","openshift_dev_spaces 3.30","openshift_service_mesh 3.0","openshift_service_mesh 3.1","openshift_service_mesh 3.2","openshift_service_mesh 3.3","satellite 6.18","satellite 6.19"],"published":"2026-07-08","updated":"2026-09-21","sourceUpdated":"2026-09-21T11:24:59+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-59873.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-59873.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-59873"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2498120"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-59873"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59873"},{"url":"https://github.com/isaacs/node-tar/commit/2812e9338665659b183aa7226518c307044957d3"},{"url":"https://github.com/isaacs/node-tar/releases/tag/v7.5.19"},{"url":"https://github.com/isaacs/node-tar/security/advisories/GHSA-23hp-3jrh-7fpw"},{"url":"https://access.redhat.com/errata/RHSA-2026:53298"},{"url":"https://access.redhat.com/errata/RHSA-2026:48033"},{"url":"https://access.redhat.com/errata/RHSA-2026:48034"},{"url":"https://access.redhat.com/errata/RHSA-2026:47059"},{"url":"https://access.redhat.com/errata/RHSA-2026:47060"},{"url":"https://access.redhat.com/errata/RHSA-2026:52399"},{"url":"https://access.redhat.com/errata/RHSA-2026:47058"},{"url":"https://access.redhat.com/errata/RHSA-2026:47057"},{"url":"https://access.redhat.com/errata/RHSA-2026:57590"},{"url":"https://access.redhat.com/errata/RHSA-2026:66545"},{"url":"https://access.redhat.com/errata/RHSA-2026:66488"},{"url":"https://access.redhat.com/errata/RHSA-2026:42815"},{"url":"https://access.redhat.com/errata/RHSA-2026:51162"},{"url":"https://access.redhat.com/errata/RHSA-2026:68681"},{"url":"https://access.redhat.com/errata/RHSA-2026:65126"},{"url":"https://access.redhat.com/errata/RHSA-2026:60520"},{"url":"https://access.redhat.com/errata/RHSA-2026:44263"},{"url":"https://access.redhat.com/errata/RHSA-2026:44267"},{"url":"https://access.redhat.com/errata/RHSA-2026:44237"},{"url":"https://access.redhat.com/errata/RHSA-2026:48124"},{"url":"https://access.redhat.com/errata/RHSA-2026:62260"},{"url":"https://access.redhat.com/errata/RHSA-2026:49687"},{"url":"https://access.redhat.com/errata/RHSA-2026:49689"},{"url":"https://access.redhat.com/errata/RHSA-2026:49681"},{"url":"https://access.redhat.com/errata/RHSA-2026:49680"},{"url":"https://access.redhat.com/errata/RHSA-2026:63371"},{"url":"https://github.com/advisories/GHSA-23hp-3jrh-7fpw"}],"tags":["csaf","vex","red-hat","ghsa","npm"],"epss":0.00556,"epssPercentile":0.45224,"aliases":["GHSA-23hp-3jrh-7fpw"],"ecosystem":"npm","ingestedAt":"2026-07-20T22:43:35.334Z","slug":"CVE-2026-59873","body":"## Overview\n\nA flaw was found in node-tar, a tar archive manipulation library for Node.js. This vulnerability allows a remote attacker to craft a small gzip bomb, which, when processed, can lead to the exhaustion of disk space and CPU resources. This occurs because node-tar does not enforce strict limits on the total decompressed data, the number of entries, or the decompression ratio during extraction and parsing. The primary impact is a Denial of Service (DoS), making the affected system or application unavailable.\n\n## Vendor advisories\n\n- **RHSA-2026:53298** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v. 10.0) · released 2026-08-11 · [advisory](https://access.redhat.com/errata/RHSA-2026:53298)\n- **RHSA-2026:48033** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10) · released 2026-07-29 · [advisory](https://access.redhat.com/errata/RHSA-2026:48033)\n- **RHSA-2026:48034** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10) · released 2026-07-29 · [advisory](https://access.redhat.com/errata/RHSA-2026:48034)\n- **RHSA-2026:47059** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8) · released 2026-07-28 · [advisory](https://access.redhat.com/errata/RHSA-2026:47059)\n- **RHSA-2026:47060** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8) · released 2026-07-28 · [advisory](https://access.redhat.com/errata/RHSA-2026:47060)\n- **RHSA-2026:52399** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.6) · released 2026-08-10 · [advisory](https://access.redhat.com/errata/RHSA-2026:52399)\n- **RHSA-2026:47058** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9) · released 2026-08-03 · [advisory](https://access.redhat.com/errata/RHSA-2026:47058)\n- **RHSA-2026:47057** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9) · released 2026-08-03 · [advisory](https://access.redhat.com/errata/RHSA-2026:47057)\n- **RHSA-2026:57590** · Red Hat · fixed in: Red Hat Enterprise Linux Extensions Channel (v. 10) · released 2026-08-20 · [advisory](https://access.redhat.com/errata/RHSA-2026:57590)\n- **RHSA-2026:66545** · Red Hat · fixed in: Red Hat AMQ Broker 7.13.6 · released 2026-09-10 · [advisory](https://access.redhat.com/errata/RHSA-2026:66545)\n- **RHSA-2026:66488** · Red Hat · fixed in: Red Hat AMQ Broker 7.14.1 · released 2026-09-10 · [advisory](https://access.redhat.com/errata/RHSA-2026:66488)\n- **Red Hat VEX** · Important · affected: Confidential Compute Attestation, Exploit Intelligence, Node HealthCheck Operator, OpenShift Pipelines, Red Hat build of Apache Camel - HawtIO 4, Red Hat Build of Podman Desktop, … · no fix planned: Confidential Compute Attestation, Exploit Intelligence, Node HealthCheck Operator, OpenShift Pipelines, … · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-59873.json)\n- **RHSA-2026:42815** · Red Hat · fixed in: Red Hat Ansible Automation Platform 2.2 · released 2026-07-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:42815)\n- **RHSA-2026:51162** · Red Hat · fixed in: Red Hat Ansible Automation Platform 2.2 · released 2026-08-06 · [advisory](https://access.redhat.com/errata/RHSA-2026:51162)\n\n**tar: node-tar: Denial of Service via crafted gzip bomb** — rated Important by Red Hat. Released 2026-07-08, updated 2026-09-21.\n\nAffected:\n\n- Confidential Compute Attestation\n- Exploit Intelligence\n- Node HealthCheck Operator\n- OpenShift Pipelines\n- Red Hat build of Apache Camel - HawtIO 4\n- Red Hat Build of Podman Desktop\n- Red Hat Connectivity Link 1\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 9\n- Red Hat Enterprise Linux AI (RHEL AI) 3\n- Red Hat Hardened Images\n- Red Hat OpenShift AI (RHOAI)\n- Red Hat Openshift Data Foundation 4\n- Red Hat Single Sign-On 7\n- Red Hat Trusted Artifact Signer\n\nFixed:\n\n- Red Hat Enterprise Linux AppStream EUS (v. 10.0)\n- Red Hat Enterprise Linux AppStream (v. 10)\n- Red Hat Enterprise Linux AppStream (v. 8)\n- Red Hat Enterprise Linux AppStream EUS (v.9.6)\n- Red Hat Enterprise Linux AppStream (v. 9)\n- Red Hat Enterprise Linux Extensions Channel (v. 10)\n- Red Hat AMQ Broker 7.13.6\n- Red Hat AMQ Broker 7.14.1\n- Red Hat Ansible Automation Platform 2.2\n- Red Hat Migration Toolkit 1.8\n- Red Hat OpenShift AI 2.25\n- Red Hat OpenShift AI 3.4\n- Red Hat OpenShift Container Platform 4.20\n- Red Hat OpenShift Container Platform 4.21\n- Red Hat OpenShift Container Platform 4.22\n- Red Hat OpenShift Dev Spaces 3.29\n- Red Hat OpenShift Dev Spaces 3.30\n- Red Hat OpenShift Service Mesh 3.0\n- Red Hat OpenShift Service Mesh 3.1\n- Red Hat OpenShift Service Mesh 3.2\n- Red Hat OpenShift Service Mesh 3.3\n- Red Hat Satellite 6.18\n- Red Hat Satellite 6.19\n\nNo fix planned:\n\n- Confidential Compute Attestation\n- Exploit Intelligence\n- Node HealthCheck Operator\n- OpenShift Pipelines\n- Red Hat build of Apache Camel - HawtIO 4\n- Red Hat Build of Podman Desktop\n- Red Hat Connectivity Link 1\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 9\n- Red Hat Enterprise Linux AI (RHEL AI) 3\n- Red Hat Hardened Images\n- Red Hat OpenShift AI (RHOAI)\n- Red Hat Openshift Data Foundation 4\n- Red Hat Single Sign-On 7\n- Red Hat Trusted Artifact Signer\n\nNot affected:\n\n- Red Hat Migration Toolkit 1.8\n- Red Hat OpenShift AI 2.25\n- Red Hat OpenShift AI 3.4\n- Red Hat OpenShift Container Platform 4.20\n- Red Hat OpenShift Container Platform 4.21\n- Red Hat OpenShift Container Platform 4.22\n- Red Hat OpenShift Dev Spaces 3.29\n- Red Hat OpenShift Dev Spaces 3.30\n- Cryostat 4\n- Red Hat 3scale API Management Platform 2\n\n## Remediation\n\nFor details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258 https://access.redhat.com/errata/RHSA-2026:53298\nFor details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258 https://access.redhat.com/errata/RHSA-2026:48033\nFor details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258 https://access.redhat.com/errata/RHSA-2026:48034\n\nWorkarounds / mitigations:\n\n- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.\n\n## Package advisory (CVE-2026-59873)\n\nAffected packages:\n\n- `tar <= 7.5.18`\n\nPatched in:\n\n- `tar 7.5.19`\n\nSource: https://github.com/advisories/GHSA-23hp-3jrh-7fpw","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":5385,"id":"CVE-2026-59873","ts":1788887275417,"field":"severity","old":"critical","new":"high"},{"seq":4268,"id":"CVE-2026-59873","ts":1788886390068,"field":"severity","old":"high","new":"critical"},{"seq":3212,"id":"CVE-2026-59873","ts":1788883133914,"field":"severity","old":"critical","new":"high"}]}