{"id":"CVE-2026-92823","aliases":[],"cve":{"records":[{"id":"CVE-2026-92823","source":"redhat","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-16T20:31:04.648Z","published":"2026-10-21T03:18:37.968Z","modified":"2026-10-30T06:04:28.739Z"}],"publishers":[{"name":"redhat","role":"CNA","organizationId":"53f830b8-0a3f-465b-8143-3b8a9948e749","modified":"2026-10-30T06:04:28.739Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-21T15:49:05.380Z"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-92823","tags":["vdb-entry","x_refsource_REDHAT"],"source":"redhat"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2478703","tags":["issue-tracking","x_refsource_REDHAT"],"source":"redhat"}],"weaknesses":[{"id":"CWE-409","description":"Improper Handling of Highly Compressed Data (Data Amplification)","source":"redhat"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-21T15:00:02.575963Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"Libmodulemd: libmodulemd: missing decompressed-size limit when parsing compressed yaml","titleSource":"redhat","descriptionSource":"redhat","description":"A flaw was found in libmodulemd. In builds with rpmio support enabled, compressed modulemd YAML is decompressed through a custom read handler that does not enforce a cumulative decompressed-size limit before parsing. An attacker who can supply a highly compressible compressed YAML file can cause excessive CPU and memory consumption, resulting in a denial of service.","score":6.2,"severity":"medium","published":"2026-10-21T03:18:37.968Z","modified":"2026-10-30T06:04:28.739Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 10","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:10"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-92823"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 8","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:8"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-92823"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 9","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:9"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-92823"},{"vendor":"Red Hat","name":"Red Hat Hardened Images","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:hummingbird:1"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-92823"},{"vendor":"Red Hat","name":"Red Hat OpenShift Container Platform 4","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:4"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-92823"},{"vendor":"Red Hat","name":"Red Hat OpenShift Container Platform 4","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:4"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-92823"},{"vendor":"Red Hat","name":"Red Hat OpenShift Container Platform 5","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:5"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-92823"}],"remediation":[{"text":"Until a fix is available, avoid parsing attacker-controlled compressed module metadata in rpmio-enabled builds. Where compressed input is required, decompress outside the process under strict size quotas, or reject files whose decompressed size exceeds a conservative limit before passing data to libmodulemd. Building without rpmio support removes the affected path.","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-92823"}],"references":["https://access.redhat.com/security/cve/CVE-2026-92823","https://bugzilla.redhat.com/show_bug.cgi?id=2478703"],"sources":[{"name":"CVE","id":"CVE-2026-92823","modified":"2026-10-30T06:04:28.739Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-92823"}],"assessments":[{"source":"redhat","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":6.2}],"sourceAffected":[],"observedAt":"2026-10-30T06:30:58.018Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T08:35:32.065Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-30T06:35:32.094Z","attemptedAt":"2026-10-30T06:35:32.094Z"},{"source":"GHSA","status":"available","checkedAt":"2026-10-30T06:35:32.456Z","attemptedAt":"2026-10-30T06:35:32.456Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-30T06:35:32.196Z","attemptedAt":"2026-10-30T06:35:32.196Z"},{"source":"EPSS","status":"available","checkedAt":"2026-10-30T06:35:32.130Z","attemptedAt":"2026-10-30T06:35:32.130Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-92823","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92823","modified":"2026-10-22T15:25:35.333","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","checkedAt":"2026-10-30T06:35:32.094Z"},{"source":"FIRST EPSS","id":"CVE-2026-92823","url":"https://www.first.org/epss/","probability":0.0016,"percentile":0.05164,"date":"2026-10-29","checkedAt":"2026-10-30T06:35:32.130Z"},{"source":"ENISA EUVD","id":"EUVD-2026-107036","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-107036","modified":"Oct 21, 2026, 3:49:05 PM","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","checkedAt":"2026-10-30T06:35:32.196Z"},{"source":"GitHub Advisory Database","id":"GHSA-x9m8-9g38-v659","url":"https://github.com/advisories/GHSA-x9m8-9g38-v659","modified":"2026-10-21T06:31:22Z","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","checkedAt":"2026-10-30T06:35:32.456Z"}],"aiSummary":{"text":"A flaw in libmodulemd allows an attacker to cause excessive CPU and memory consumption with a highly compressible compressed YAML file, resulting in a denial of service. The issue affects Red Hat Enterprise Linux 8, 9, and 10, among other products. An attacker must be able to supply a compressed YAML file to exploit the vulnerability.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T08:31:46.458Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-92823"}]}}