CVE-2026-87776

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{"bugzilla": {"description": "compression: compression: Denial of Service via memory leak on premature response close", "id": "2531852", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2531852"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-772", "details": ["A flaw was found in the `compression` Node.js and Express middleware. A remote unauthenticated attacker can exploit this vulnerability by repeatedly initiating and then prematurely aborting connections while compressed responses are being sent. This action prevents the zlib stream, used for compression, from being properly destroyed, leading to a memory leak. Over time, this memory exhaustion can cause the server to crash, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-87776", "package_state": [{"cpe": "cpe:/a:redhat:gatekeeper:3", "fix_state": "Affected", "package_name": "gatekeeper/gatekeeper-rhel9", "product_name": "Gatekeeper 3"}, {"cpe": "cpe:/a:redhat:rhmt:1", "fix_state": "Affected", "package_name": "rhmtc/openshift-migration-ui-rhel8", "product_name": "Migration Toolkit for Containers"}, {"cpe": "cpe:/a:redhat:workload_availability_nhc:0", "fix_state": "Affected", "package_name": "workload-availability/node-healthcheck-must-gather-rhel9", "product_name": "Node HealthCheck Operator"}, {"cpe": "cpe:/a:redhat:workload_availability_nhc:0", "fix_state": "Affected", "package_name": "workload-availability/node-healthcheck-operator-bundle", "product_name": "Node HealthCheck Operator"}, {"cpe": "cpe:/a:redhat:workload_availability_nhc:0", "fix_state": "Affected", "package_name": 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"product_name": "Red Hat OpenShift GitOps"}, {"cpe": "cpe:/a:redhat:openshift_gitops:1", "fix_state": "Affected", "package_name": "openshift-gitops-argocd-cli", "product_name": "Red Hat OpenShift GitOps"}, {"cpe": "cpe:/a:redhat:quay:3", "fix_state": "Affected", "package_name": "quay/quay-rhel8", "product_name": "Red Hat Quay 3"}, {"cpe": "cpe:/a:redhat:trusted_artifact_signer:1", "fix_state": "Affected", "package_name": "rhtas/rekor-search-ui-rhel9", "product_name": "Red Hat Trusted Artifact Signer"}, {"cpe": "cpe:/a:redhat:secrets_management_console:0", "fix_state": "Will not fix", "package_name": "external-secrets-management/console-plugin-rhel9", "product_name": "Secrets Management Console for Red Hat OpenShift"}, {"cpe": "cpe:/a:redhat:ansible_portal:2", "fix_state": "Affected", "package_name": "ansible-automation-platform/automation-portal", "product_name": "Self-service automation portal 2"}, {"cpe": "cpe:/a:redhat:ansible_portal:2", "fix_state": "Affected", "package_name": "ansible-automation-platform/bootc-automation-portal-rhel9", "product_name": "Self-service automation portal 2"}], "public_date": "2026-09-11T11:24:55Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-87776\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-87776\nhttps://cna.openjsf.org/security-advisories.html\nhttps://github.com/expressjs/compression/security/advisories/GHSA-vc2v-76pw-4v95"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.8.2)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "1.8.2"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "compression", "source": "cna", "vendor": "compression"}, "product": "compression", "vendor": "expressjs"}], "created": "2026-09-11T12:30:08.102617+00:00", "updated": "2026-09-21T05:00:14.031623+00:00", "vendors": ["expressjs", "expressjs$PRODUCT$compression"]}