Is CVE-2026-82327 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-82327 being exploited in the wild.

How severe is CVE-2026-82327?

Medium severity, with a CVSS score of 5.5, published 28 August 2026.

Is there a fix for CVE-2026-82327?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-82327 attacked?

It is attacked with local access.

Am I affected by CVE-2026-82327?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-82327: libsolv out-of-bounds write in .solv cache file handling

CVE-2026-82327 · Severity: medium · CVSS 5.5 · Published 2026-08-28

libsolv is a dependency-resolution library used by package managers (like dnf, yum, and zypper) to manage software updates on Linux systems. A flaw in how it reads .solv cache files can cause the package manager to crash when processing a corrupted or malicious cache file, disrupting software update operations. The crash is the primary impact; the vulnerability cannot be exploited for code execution.

Quick answers

Is CVE-2026-82327 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-82327 being exploited in the wild.
How severe is CVE-2026-82327?: Medium severity, with a CVSS score of 5.5, published 28 August 2026.
Which products and versions are affected?: libsolv project libsolv <unknown>.
Is there a fix for CVE-2026-82327?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-82327 attacked?: It is attacked with local access.
Am I affected by CVE-2026-82327?: Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability is an improper array index validation (CWE-129) in libsolv's vertical/paged filelist decoder. When libsolv rewrites a .solv cache file via repo_write(), it reads directory-id values from compressed filelist data without bounds checking, allowing an out-of-bounds memory write. Attack vector is local; an attacker must craft or corrupt a .solv cache file and cause a victim tool (dnf/yum/zypper) to process it. User interaction is required (the tool must be invoked to process the cache). The out-of-bounds write stores a fixed, non-attacker-controlled constant value, reliably resulting in a denial-of-service crash rather than code execution or data compromise. A patch is not yet available as of the advisory date.

Affected products

libsolv project libsolv <unknown>

Timeline

2026-08-28: disclosed

References

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