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Solution
No solution given by the vendor.
Workaround
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.
Wed, 21 Oct 2026 03:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Libmodulemd: libmodulemd: missing decompressed-size limit when parsing compressed yaml | |
| First Time appeared |
Redhat
Redhat enterprise Linux Redhat hummingbird Redhat openshift |
|
| Weaknesses | CWE-409 | |
| CPEs | cpe:/a:redhat:hummingbird:1 cpe:/a:redhat:openshift:4 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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| Vendors & Products |
Redhat
Redhat enterprise Linux Redhat hummingbird Redhat openshift |
|
| References |
| |
| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-10-21T03:23:10.549Z
Reserved: 2026-09-16T20:31:04.648Z
Link: CVE-2026-92823
No data.
Status : Received
Published: 2026-10-21T04:18:12.127
Modified: 2026-10-21T04:18:12.127
Link: CVE-2026-92823
No data.
OpenCVE Enrichment
No data.