OESA-2026-4509

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Source

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-4509

Import Source

https://repo.openeuler.org/security/data/osv/OESA-2026-4509.json

JSON Data

https://api.osv.dev/v1/vulns/OESA-2026-4509

Upstream

CVE-2026-82327

Published

2026-10-22T14:36:00Z

Modified

2026-10-22T14:45:07Z

Severity

5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator

Summary

libsolv security update

Details

A free package dependency solver using a satisfiability algorithm. The library is based on two major, but independent, blocks:

Security Fix(es):

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.(CVE-2026-82327)

Database specific

{
    "severity":  "Medium"
}

References

Affected packages

openEuler:22.03-LTS-SP4 / libsolv

Package

Name: libsolv
Purl: pkg:rpm/openEuler/libsolv&distro=openEuler-22.03-LTS-SP4

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

0.7.22-6.oe2203sp4

Ecosystem specific

{
    "aarch64":  [
        "libsolv-0.7.22-6.oe2203sp4.aarch64.rpm",
        "libsolv-debuginfo-0.7.22-6.oe2203sp4.aarch64.rpm",
        "libsolv-debugsource-0.7.22-6.oe2203sp4.aarch64.rpm",
        "libsolv-demo-0.7.22-6.oe2203sp4.aarch64.rpm",
        "libsolv-devel-0.7.22-6.oe2203sp4.aarch64.rpm",
        "libsolv-tools-0.7.22-6.oe2203sp4.aarch64.rpm",
        "perl-solv-0.7.22-6.oe2203sp4.aarch64.rpm",
        "python3-solv-0.7.22-6.oe2203sp4.aarch64.rpm",
        "ruby-solv-0.7.22-6.oe2203sp4.aarch64.rpm"
    ],
    "noarch":  [
        "libsolv-help-0.7.22-6.oe2203sp4.noarch.rpm"
    ],
    "src":  [
        "libsolv-0.7.22-6.oe2203sp4.src.rpm"
    ],
    "x86_64":  [
        "libsolv-0.7.22-6.oe2203sp4.x86_64.rpm",
        "libsolv-debuginfo-0.7.22-6.oe2203sp4.x86_64.rpm",
        "libsolv-debugsource-0.7.22-6.oe2203sp4.x86_64.rpm",
        "libsolv-demo-0.7.22-6.oe2203sp4.x86_64.rpm",
        "libsolv-devel-0.7.22-6.oe2203sp4.x86_64.rpm",
        "libsolv-tools-0.7.22-6.oe2203sp4.x86_64.rpm",
        "perl-solv-0.7.22-6.oe2203sp4.x86_64.rpm",
        "python3-solv-0.7.22-6.oe2203sp4.x86_64.rpm",
        "ruby-solv-0.7.22-6.oe2203sp4.x86_64.rpm"
    ]
}

Database specific

source

"https://repo.openeuler.org/security/data/osv/OESA-2026-4509.json"