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When libsolv rewrites a .solv cache file, it reads directory-id values from the file's compressed filelist data without validating that they fall within the expected range. A corrupted or specially crafted .solv cache file (for example, one left in a torn state after an unclean system shutdown) can cause an out-of-bounds memory write when a tool such as dnf, yum, or zypper next processes it. Successful exploitation is expected to result in a crash of the affected tool (denial of service); it is not expected to allow arbitrary code execution because the out-of-bounds write always stores a fixed, non-attacker-controlled value."}],"affected":[{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsolv","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:10"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 7","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsolv","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:7"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 8","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsolv","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:8"]},{"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsolv","defaultStatus":"affected","cpes":["cpe:/o:redhat:enterprise_linux:9"]},{"vendor":"Red Hat","product":"Red Hat Hardened Images","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsolv","defaultStatus":"affected","cpes":["cpe:/a:redhat:hummingbird:1"]},{"vendor":"Red Hat","product":"Red Hat OpenShift Container Platform 4","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"rhcos","defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:4"]},{"vendor":"Red Hat","product":"Red Hat Satellite 6","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsolv","defaultStatus":"affected","cpes":["cpe:/a:redhat:satellite:6"]},{"vendor":"Red Hat","product":"Red Hat Satellite 6","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsolv0","defaultStatus":"affected","cpes":["cpe:/a:redhat:satellite:6"]},{"vendor":"Red Hat","product":"Red Hat Satellite 6","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"python3.12-solv","defaultStatus":"affected","cpes":["cpe:/a:redhat:satellite:6"]},{"vendor":"Red Hat","product":"Red Hat Satellite 6","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"python-solv","defaultStatus":"affected","cpes":["cpe:/a:redhat:satellite:6"]},{"vendor":"Red Hat","product":"Red Hat Update Infrastructure 4 for Cloud Providers","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"libsolv","defaultStatus":"affected","cpes":["cpe:/a:redhat:rhui:4::el8"]}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-82327","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2525602","name":"RHBZ#2525602","tags":["issue-tracking","x_refsource_REDHAT"]}],"datePublic":"2026-08-28T14:00:00.000Z","problemTypes":[{"descriptions":[{"cweId":"CWE-129","description":"Improper Validation of Array Index","lang":"en","type":"CWE"}]}],"x_redhatCweChain":"CWE-129: Improper Validation of Array Index","workarounds":[{"lang":"en","value":"No mitigation is currently available that meets Red Hat Product Security's standards for usability, deployment, applicability, or stability."}],"timeline":[{"lang":"en","time":"2026-08-26T15:19:36.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-08-28T14:00:00.000Z","value":"Made public."}],"credits":[{"lang":"en","value":"Red Hat would like to thank Dinko Georgiev (StorPool) for reporting this issue."}],"providerMetadata":{"orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","shortName":"redhat","dateUpdated":"2026-08-28T14:21:04.777Z"},"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-28T16:07:47.382953Z","id":"CVE-2026-82327","options":[{"Exploitation":"none"},{"Automatable":"no"},{"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":"2026-08-28T16:08:04.589Z"}}]}}