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Red Hat Enterprise Linux 10 EUVD-2026-12031

| CVE-2026-4111 HIGH
Loop with Unreachable Exit Condition (Infinite Loop) (CWE-835)
2026-03-13 redhat
Denial Of Service Red Hat Enterprise Linux 10 Red Hat Enterprise Linux 6 Red Hat Enterprise Linux 7 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 9 Red Hat Openshift Container Platform 4
7.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SUSE
HIGH
qualitative
Red Hat
7.5 HIGH
qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

8
Analysis Updated
Apr 20, 2026 - 04:33 vuln.today
v4 (cvss_changed)
Analysis Updated
Apr 17, 2026 - 14:29 vuln.today
v3 (cvss_changed)
Analysis Updated
Apr 17, 2026 - 12:28 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Apr 16, 2026 - 14:22 vuln.today
cvss_changed
Patch released
Apr 06, 2026 - 12:45 nvd
Patch available
EUVD ID Assigned
Mar 13, 2026 - 16:57 euvd
EUVD-2026-12031
Analysis Generated
Mar 13, 2026 - 16:57 vuln.today
CVE Published
Mar 13, 2026 - 11:45 nvd
HIGH 7.5

DescriptionCVE.org

A flaw was identified in the RAR5 archive decompression logic of the libarchive library, specifically within the archive_read_data() processing path. When a specially crafted RAR5 archive is processed, the decompression routine may enter a state where internal logic prevents forward progress. This condition results in an infinite loop that continuously consumes CPU resources. Because the archive passes checksum validation and appears structurally valid, affected applications cannot detect the issue before processing. This can allow attackers to cause persistent denial-of-service conditions in services that automatically process archives.

AnalysisAI

Infinite loop in libarchive's RAR5 decompression (archive_read_data) allows remote unauthenticated denial-of-service via malformed archive that passes checksum validation. Affects Red Hat Enterprise Linux 6-10 and OpenShift Container Platform 4. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Send malformed RAR5 archive
Delivery
Victim service invokes archive_read_data()
Exploit
Decompression state machine enters unreachable exit condition
Execution
Infinite loop consumes CPU core
Impact
Service becomes unresponsive
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Vulnerability AssessmentAI

Exploitation Exploitation requires target system to process attacker-supplied RAR5 archives using affected libarchive versions. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 7.5 (AV:N/AC:L/PR:N/UI:N) indicates remotely exploitable denial-of-service with no authentication or user interaction required, which normally signals critical priority. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Attacker crafts a malformed RAR5 archive with specific internal state flags that trigger the infinite loop condition in archive_read_data(). They submit this archive to a target service (e.g., email server with attachment scanning, web application with file upload, package repository mirror). …
Remediation Apply vendor-supplied patches immediately for systems processing untrusted archives. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours: Identify all systems running libarchive or affected RHEL/OpenShift versions and create an inventory. …

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Vendor StatusVendor

SUSE

Severity: High
Product Status
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SUSE Liberty Linux 9 Fixed
SUSE Linux Enterprise Desktop 15 SP7 Fixed
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SUSE Linux Enterprise High Performance Computing 15 SP7 Fixed

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EUVD-2026-12031 vulnerability details – vuln.today
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