A flaw was found in libsolv, a dependency-resolution library used by RPM-based package managers such as dnf and zypper to work with .solv repository cache files. 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.
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History
Sat, 29 Aug 2026 00:15:00 +0000
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Fri, 28 Aug 2026 15:30:00 +0000
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| Description | A flaw was found in libsolv, a dependency-resolution library used by RPM-based package managers such as dnf and zypper to work with .solv repository cache files. 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. | |
| Title | Libsolv: libsolv: out-of-bounds write in repo_write() via unvalidated directory id from vertical/paged .solv filelist data | |
| First Time appeared |
Redhat
Redhat enterprise Linux Redhat hummingbird Redhat openshift Redhat rhui Redhat satellite |
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| Weaknesses | CWE-129 | |
| CPEs | cpe:/a:redhat:hummingbird:1 cpe:/a:redhat:openshift:4 cpe:/a:redhat:rhui:4::el8 cpe:/a:redhat:satellite:6 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
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Redhat
Redhat enterprise Linux Redhat hummingbird Redhat openshift Redhat rhui Redhat satellite |
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cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-08-28T16:08:04.589Z
Reserved: 2026-08-28T14:09:22.670Z
Link: CVE-2026-82327
No data.
Status : Awaiting Analysis
Published: 2026-08-28T16:18:34.067
Modified: 2026-08-28T20:20:21.063
Link: CVE-2026-82327
OpenCVE Enrichment
Updated: 2026-08-28T17:00:13Z