{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-42154", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-04-24T17:15:21.835Z", "datePublished": "2026-05-04T18:13:12.340Z", "dateUpdated": "2026-07-10T12:06:09.882Z" }, "containers": { "cna": { "title": "Prometheus: remote read endpoint allows denial of service via crafted snappy payload", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-400", "lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption", "type": "CWE" } ] }, { "descriptions": [ { "cweId": "CWE-789", "lang": "en", "description": "CWE-789: Memory Allocation with Excessive Size Value", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" } } ], "references": [ { "name": "https://github.com/prometheus/prometheus/security/advisories/GHSA-8rm2-7qqf-34qm", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/prometheus/prometheus/security/advisories/GHSA-8rm2-7qqf-34qm" }, { "name": "https://github.com/prometheus/prometheus/pull/18584", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/prometheus/prometheus/pull/18584" }, { "name": "https://github.com/prometheus/prometheus/pull/18585", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/prometheus/prometheus/pull/18585" }, { "name": "https://github.com/prometheus/prometheus/releases/tag/v3.11.3", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/prometheus/prometheus/releases/tag/v3.11.3" }, { "name": "https://github.com/prometheus/prometheus/releases/tag/v3.5.3", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/prometheus/prometheus/releases/tag/v3.5.3" } ], "affected": [ { "vendor": "prometheus", "product": "prometheus", "versions": [ { "version": "< 3.5.3", "status": "affected" }, { "version": ">= 3.6.0, < 3.11.3", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-05-04T18:13:12.340Z" }, "descriptions": [ { "lang": "en", "value": "Prometheus is an open-source monitoring system and time series database. Prior to versions 3.5.3 and 3.11.3, the remote read endpoint (/api/v1/read) does not validate the declared decoded length in a snappy-compressed request body before allocating memory. An unauthenticated attacker can send a small payload that causes a huge heap allocation per request. Under concurrent load this can exhaust available memory and crash the Prometheus process. This issue has been patched in versions 3.5.3 and 3.11.3." } ], "source": { "advisory": "GHSA-8rm2-7qqf-34qm", "discovery": "UNKNOWN" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-05-04T20:18:48.754025Z", "id": "CVE-2026-42154", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-04T20:19:13.876Z" } }, { "affected": [ { "cpes": [ "cpe:/a:redhat:edge_manager:1.0::el9" ], "defaultStatus": "affected", "product": "RHEM 1.0 for RHEL 9", "vendor": "Red Hat" }, { "cpes": [ "cpe:/o:redhat:enterprise_linux:10.2" ], "defaultStatus": "affected", "product": "Red Hat Enterprise Linux AppStream (v. 10)", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:enterprise_linux:9::appstream" ], "defaultStatus": "affected", "product": "Red Hat Enterprise Linux AppStream (v. 9)", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:logging:6.4::el9" ], "defaultStatus": "affected", "product": "Logging Subsystem for Red Hat OpenShift 6.4", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:acm:2.13::el9" ], "defaultStatus": "affected", "product": "Red Hat Advanced Cluster Management for Kubernetes 2.13", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:edge_manager:1.0::el9" ], "defaultStatus": "affected", "product": "Red Hat Edge Manager 1.0", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:hummingbird:1" ], "defaultStatus": "affected", "product": "Red Hat Hardened Images", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:openshift_file_integrity_operator:1" ], "defaultStatus": "affected", "product": "File Integrity Operator", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:logging:6" ], "defaultStatus": "affected", "product": "Logging Subsystem for Red Hat OpenShift", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:multicluster_globalhub" ], "defaultStatus": "affected", "product": "Multicluster Global Hub", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:network_observ_optr:1" ], "defaultStatus": "affected", "product": "Network Observability Operator", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:openshift_lightspeed" ], "defaultStatus": "affected", "product": "OpenShift Lightspeed", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:ceph_storage:5" ], "defaultStatus": "affected", "product": "Red Hat Ceph Storage 5", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:ceph_storage:6" ], "defaultStatus": "affected", "product": "Red Hat Ceph Storage 6", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:ceph_storage:7" ], "defaultStatus": "affected", "product": "Red Hat Ceph Storage 7", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:ceph_storage:8" ], "defaultStatus": "affected", "product": "Red Hat Ceph Storage 8", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:ceph_storage:9" ], "defaultStatus": "affected", "product": "Red Hat Ceph Storage 9", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:edge_manager:1" ], "defaultStatus": "affected", "product": "Red Hat Edge Manager 1", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:openshift_ai" ], "defaultStatus": "affected", "product": "Red Hat OpenShift AI (RHOAI)", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:openshift:4" ], "defaultStatus": "affected", "product": "Red Hat OpenShift Container Platform 4", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:openshift_gitops:1" ], "defaultStatus": "affected", "product": "Red Hat OpenShift GitOps", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:quay:3" ], "defaultStatus": "affected", "product": "Red Hat Quay 3", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:trusted_artifact_signer:1" ], "defaultStatus": "affected", "product": "Red Hat Trusted Artifact Signer", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:service_mesh:2" ], "defaultStatus": "unaffected", "product": "OpenShift Service Mesh 2", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:service_mesh:3" ], "defaultStatus": "unaffected", "product": "OpenShift Service Mesh 3", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:acm:2" ], "defaultStatus": "unaffected", "product": "Red Hat Advanced Cluster Management for Kubernetes 2", "vendor": "Red Hat" }, { "cpes": [ "cpe:/o:redhat:enterprise_linux:10" ], "defaultStatus": "unaffected", "product": "Red Hat Enterprise Linux 10", "vendor": "Red Hat" }, { "cpes": [ "cpe:/o:redhat:enterprise_linux:7" ], "defaultStatus": "unaffected", "product": "Red Hat Enterprise Linux 7", "vendor": "Red Hat" }, { "cpes": [ "cpe:/o:redhat:enterprise_linux:8" ], "defaultStatus": "unaffected", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat" }, { "cpes": [ "cpe:/o:redhat:enterprise_linux:9" ], "defaultStatus": "unaffected", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat" }, { "cpes": [ "cpe:/a:redhat:openstack:18.0" ], "defaultStatus": "unaffected", "product": "Red Hat OpenStack Platform 18.0", "vendor": "Red Hat" } ], "datePublic": "2026-05-04T18:13:12.340Z", "descriptions": [ { "lang": "en", "value": "A flaw was found in Prometheus. An unauthenticated attacker can exploit the remote read endpoint (`/api/v1/read`) by sending a specially crafted, small snappy-compressed payload. This payload causes a disproportionately large memory allocation, leading to memory exhaustion and a Denial of Service (DoS) by crashing the Prometheus process." } ], "metrics": [ { "other": { "content": { "namespace": "https://access.redhat.com/security/updates/classification/", "value": "Important" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "format": "CVSS" } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-770", "description": "Allocation of Resources Without Limits or Throttling", "lang": "en", "type": "CWE" } ] } ], "references": [ { "tags": [ "vdb-entry", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/security/cve/CVE-2026-42154" }, { "name": "RHBZ#2466505", "tags": [ "issue-tracking", "x_refsource_REDHAT" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2466505" }, { "tags": [ "x_sadp-csaf-vex" ], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42154.json" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:36796" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:34357" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:34359" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:34364" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:30651" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:36651" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:25039" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:29770" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:25245" } ], "solutions": [ { "lang": "en", "value": "RHSA-2026:36796: RHEM 1.0 for RHEL 9" }, { "lang": "en", "value": "RHSA-2026:34357: Red Hat Enterprise Linux AppStream (v. 10)" }, { "lang": "en", "value": "RHSA-2026:34359: Red Hat Enterprise Linux AppStream (v. 9)" }, { "lang": "en", "value": "RHSA-2026:34364: Logging Subsystem for Red Hat OpenShift 6.4" }, { "lang": "en", "value": "RHSA-2026:30651: Red Hat Advanced Cluster Management for Kubernetes 2.13" }, { "lang": "en", "value": "RHSA-2026:36651: Red Hat Edge Manager 1.0" }, { "lang": "en", "value": "RHSA-2026:25039: Red Hat Hardened Images" }, { "lang": "en", "value": "RHSA-2026:29770: Red Hat Hardened Images" }, { "lang": "en", "value": "RHSA-2026:25245: Red Hat Hardened Images" } ], "timeline": [ { "lang": "en", "time": "2026-05-04T19:02:19.626Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-05-04T18:13:12.340Z", "value": "Made public." } ], "title": "github.com/prometheus/prometheus: Prometheus: Denial of Service via uncontrolled memory allocation in remote read endpoint", "x_adpType": "supplier", "x_generator": { "engine": "sadp-cli 1.0.0" }, "providerMetadata": { "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-07-10T12:06:09.882Z" } } ] } }