CVE-2026-4111— Libarchive: infinite loop denial of service in rar5 decompression via archive_read_data() in libarchive
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I. Basic Information for CVE-2026-4111
Vulnerability Information
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Vulnerability Title
Libarchive: infinite loop denial of service in rar5 decompression via archive_read_data() in libarchive
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Red Hat Enterprise Linux 10 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat Enterprise Linux 10是美国红帽（Red Hat）公司的一套面向企业用户的Linux操作系统。 Red Hat Enterprise Linux 10存在安全漏洞，该漏洞源于RAR5归档解压逻辑问题，可能导致无限循环和拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | 0:3.7.7-5.el10_1 ~ * | cpe:/o:redhat:enterprise_linux:10.1 | |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | 0:3.7.7-5.el10_0 ~ * | cpe:/o:redhat:enterprise_linux_eus:10.0 | |
| Red Hat | Red Hat Enterprise Linux 9 | 0:3.5.3-7.el9_7 ~ * | cpe:/a:redhat:enterprise_linux:9::appstream | |
| Red Hat | Red Hat Enterprise Linux 9 | 0:3.5.3-7.el9_7 ~ * | cpe:/a:redhat:enterprise_linux:9::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | 0:3.5.3-2.el9_0.3 ~ * | cpe:/a:redhat:rhel_e4s:9.0::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | 0:3.5.3-5.el9_2.1 ~ * | cpe:/a:redhat:rhel_e4s:9.2::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | 0:3.5.3-4.el9_4.2 ~ * | cpe:/a:redhat:rhel_eus:9.4::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | 0:3.5.3-6.el9_6.1 ~ * | cpe:/a:redhat:rhel_eus:9.6::appstream | |
| Red Hat | Red Hat OpenShift Container Platform 4.13 | 413.92.202604080111-0 ~ * | cpe:/a:redhat:openshift:4.13::el9 | |
| Red Hat | Red Hat OpenShift Container Platform 4.16 | 416.94.202604211449-0 ~ * | cpe:/a:redhat:openshift:4.16::el9 | |
| Red Hat | Red Hat OpenShift Container Platform 4.18 | 418.94.202604140044-0 ~ * | cpe:/a:redhat:openshift:4.18::el9 | |
| Red Hat | Red Hat OpenShift Container Platform 4.19 | 4.19.9.6.202604211219-0 ~ * | cpe:/a:redhat:openshift:4.19::el9 | |
| Red Hat | Red Hat AI Inference Server 3.2 | 1775740563 ~ * | cpe:/a:redhat:ai_inference_server:3.2::el9 | |
| Red Hat | Red Hat AI Inference Server 3.3 | 1775680192 ~ * | cpe:/a:redhat:ai_inference_server:3.3::el9 | |
| Red Hat | Red Hat AI Inference Server 3.3 | 1775680262 ~ * | cpe:/a:redhat:ai_inference_server:3.3::el9 | |
| Red Hat | Red Hat AI Inference Server 3.3 | 1775749857 ~ * | cpe:/a:redhat:ai_inference_server:3.3::el9 | |
| Red Hat | Red Hat Discovery 2 | 1775668717 ~ * | cpe:/a:redhat:discovery:2::el9 | |
| Red Hat | Red Hat Discovery 2 | 1775675922 ~ * | cpe:/a:redhat:discovery:2::el9 | |
| Red Hat | Red Hat Hardened Images | 3.8.7-1.hum1 ~ * | cpe:/a:redhat:hummingbird:1 | |
| Red Hat | Red Hat Insights proxy 1.5 | 1776868961 ~ * | cpe:/a:redhat:insights_proxy:1.5::el9 | |
| Red Hat | Red Hat Update Infrastructure 5 | 1776868774 ~ * | cpe:/a:redhat:rhui:5::el9 | |
| Red Hat | Red Hat Update Infrastructure 5 | 1776868744 ~ * | cpe:/a:redhat:rhui:5::el9 | |
| Red Hat | Red Hat Update Infrastructure 5 | 1776868772 ~ * | cpe:/a:redhat:rhui:5::el9 | |
| Red Hat | Red Hat Update Infrastructure 5 | 1776868842 ~ * | cpe:/a:redhat:rhui:5::el9 | |
| Red Hat | Red Hat Enterprise Linux 6 | - | cpe:/o:redhat:enterprise_linux:6 | |
| Red Hat | Red Hat Enterprise Linux 7 | - | cpe:/o:redhat:enterprise_linux:7 | |
| Red Hat | Red Hat Enterprise Linux 8 | - | cpe:/o:redhat:enterprise_linux:8 |
II. Public POCs for CVE-2026-4111
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Same Patch Batch · Red Hat · 2026-03-13 · 4 CVEs total
| CVE-2026-4105 | 6.7 MEDIUM | Systemd: systemd: privilege escalation via improper access control in registermachine d-bu |
| CVE-2025-57849 | 6.4 MEDIUM | Fuse: privilege escalation via excessive /etc/passwd permissions |
| CVE-2025-8766 | 6.4 MEDIUM | Noobaa-core: excessive permissions of /etc could lead to escalation of privilege in the no |
IV. Related Vulnerabilities
Same product: Red Hat Enterprise Linux 10
- CVE-2026-42011
Gnutls: gnutls: security bypass due to incorrect name constr - CVE-2026-42010
Gnutls: gnutls: authentication bypass via nul character in u - CVE-2026-6420
Keylime: keylime: security bypass due to hardcoded tpm quote - CVE-2026-34002
Xorg: xwayland: x.org x server: information disclosure or de - CVE-2026-34000
Xwayland: xorg: x.org x server: information disclosure and d
Same vendor: Red Hat
- CVE-2026-42011
Gnutls: gnutls: security bypass due to incorrect name constr - CVE-2026-42010
Gnutls: gnutls: authentication bypass via nul character in u - CVE-2026-6420
Keylime: keylime: security bypass due to hardcoded tpm quote - CVE-2026-34956
Openvswitch: open vswitch: denial of service via malformed f - CVE-2026-34002
Xorg: xwayland: x.org x server: information disclosure or de
Same weakness: CWE-835
- CVE-2026-42310
Pillow: PDF Parsing Trailer Infinite Loop (DoS) - CVE-2026-41511
OpenMcdf has an Infinite loop DoS via crafted CFB directory - CVE-2026-5407
Loop with Unreachable Exit Condition ('Infinite Loop') in Wi - CVE-2026-6536
Loop with Unreachable Exit Condition ('Infinite Loop') in Wi - CVE-2026-6534
Loop with Unreachable Exit Condition ('Infinite Loop') in Wi
V. Comments for CVE-2026-4111
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