RHSA-2026:7349
Vulnerability from csaf_redhat - Published: 2026-04-09 19:44 - Updated: 2026-04-22 18:11Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Severity
Moderate
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in dnf5. A local, unprivileged attacker can exploit a path traversal vulnerability in the D-Bus locale configuration. By providing a specially crafted string to the locale key during session opening, the attacker can force the dnf5daemon-server to terminate, leading to an application-level Denial of Service (DoS) with a core dump.
5.5 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://images.redhat.com/
https://access.redhat.com/errata/RHSA-2026:7349
Workaround
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
References
Acknowledgments
Yashashree Gund
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"cve": "CVE-2026-3836",
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"name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
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"text": "A flaw was found in dnf5. A local, unprivileged attacker can exploit a path traversal vulnerability in the D-Bus locale configuration. By providing a specially crafted string to the locale key during session opening, the attacker can force the dnf5daemon-server to terminate, leading to an application-level Denial of Service (DoS) with a core dump.",
"title": "Vulnerability description"
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"text": "This issue was rated as moderate. A path traversal vulnerability exists in dnf5daemon-server, allowing a local, unprivileged attacker with access to the System D-Bus to trigger a denial of service. By providing a specially crafted locale string during session opening, the attacker can force the daemon to terminate, leading to an application-level denial of service with a core dump.",
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"release_date": "2026-03-09T12:34:00+00:00",
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"scores": [
{
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"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"threats": [
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"category": "impact",
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"title": "dnf5: dnf5: Denial of Service via path traversal in D-Bus locale configuration"
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}
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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