Vulnerability in Red Hat Ai Inference Server 3.2
CVE-2026-4111
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.009 (57.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.009 · change: +0.002
Affected products
- Red Hat Ai Inference Server 3.2 — versions 1775740563, 1780681984
- Red Hat Ai Inference Server 3.3 — versions 1778244531, 1775749857, 1775680262
- Red Hat Discovery 2 — versions 1775668717, 1775675922
- Red Hat Enterprise Linux 10 — versions 0:3.7.7-5.el10_1
- Red Hat Enterprise Linux 10.0 Extended Update Support — versions 0:3.7.7-5.el10_0
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9 — versions 0:3.5.3-7.el9_7
- Red Hat Enterprise Linux 9.0 Update Services For SAP Solutions — versions 0:3.5.3-2.el9_0.3
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2026:10065 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:10081 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:10097 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:5063 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:5080 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:6647 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:7093 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:7105 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:7106 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:7239 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-4111?
- CVE-2026-4111 is a high-severity vulnerability in Red Hat Ai Inference Server 3.2, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2026-03-13.
- How severe is CVE-2026-4111?
- High severity. CVSS v3 base score is 7.5 out of 10.