Vulnerabilities
Misconfiguration
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CVE Vulnerabilities

CVE-2026-4424

Out-of-bounds Read

Published: Mar 19, 2026 | Modified: Jun 10, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
7.5 IMPORTANT
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-4424
CWEhttps://cwe.mitre.org/data/definitions/125.html

A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processing logic due to improper validation of the LZSS sliding window size after transitions between compression methods. A remote attacker can exploit this by providing a specially crafted RAR archive, leading to the disclosure of sensitive heap memory information without requiring authentication or user interaction.

Weakness

The product reads data past the end, or before the beginning, of the intended buffer.

Affected Software

NameVendorStart VersionEnd Version
LibarchiveLibarchive- (including)- (including)
Hardened_imagesRedhat- (including)- (including)
Openshift_container_platformRedhat4.0 (including)4.0 (including)
Openshift_container_platformRedhat4.16 (including)4.16 (including)
Openshift_container_platform_for_arm64Redhat4.16 (including)4.16 (including)
Openshift_container_platform_for_powerRedhat4.16 (including)4.16 (including)
Enterprise_linuxRedhat6.0 (including)6.0 (including)
Enterprise_linuxRedhat7.0 (including)7.0 (including)
Enterprise_linuxRedhat8.0 (including)8.0 (including)
Enterprise_linuxRedhat9.0 (including)9.0 (including)
Enterprise_linuxRedhat10.0 (including)10.0 (including)
Enterprise_linux_server_ausRedhat8.2 (including)8.2 (including)
Enterprise_linux_server_ausRedhat8.4 (including)8.4 (including)
Red Hat Enterprise Linux 10RedHatlibarchive-0:3.7.7-8.el10_1*
Red Hat Enterprise Linux 10.0 Extended Update SupportRedHatlibarchive-0:3.7.7-5.el10_0*
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRedHatlibarchive-0:3.1.2-14.el7_9.2*
Red Hat Enterprise Linux 8RedHatlibarchive-0:3.3.3-7.el8_10*
Red Hat Enterprise Linux 8.2 Advanced Update SupportRedHatlibarchive-0:3.3.2-8.el8_2.2*
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRedHatlibarchive-0:3.3.3-1.el8_4.2*
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRedHatlibarchive-0:3.3.3-1.el8_4.2*
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRedHatlibarchive-0:3.3.3-6.el8_6.1*
Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRedHatlibarchive-0:3.3.3-6.el8_6.1*
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRedHatlibarchive-0:3.3.3-6.el8_6.1*
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRedHatlibarchive-0:3.3.3-5.el8_8.2*
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRedHatlibarchive-0:3.3.3-5.el8_8.2*
Red Hat Enterprise Linux 9RedHatlibarchive-0:3.5.3-9.el9_7*
Red Hat Enterprise Linux 9RedHatlibarchive-0:3.5.3-9.el9_7*
Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRedHatlibarchive-0:3.5.3-2.el9_0.4*
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRedHatlibarchive-0:3.5.3-5.el9_2.2*
Red Hat Enterprise Linux 9.4 Extended Update SupportRedHatlibarchive-0:3.5.3-5.el9_4*
Red Hat Enterprise Linux 9.6 Extended Update SupportRedHatlibarchive-0:3.5.3-7.el9_6.1*
Red Hat OpenShift Container Platform 4.12RedHatrhcos-412.86.202604281506-0*
Red Hat OpenShift Container Platform 4.13RedHatrhcos-413.92.202605271328-0*
Red Hat OpenShift Container Platform 4.14RedHatrhcos-414.92.202605060243-0*
Red Hat OpenShift Container Platform 4.15RedHatrhcos-415.92.202605060220-0*
Red Hat OpenShift Container Platform 4.16RedHatrhcos-416.94.202604211449-0*
Red Hat OpenShift Container Platform 4.17RedHatrhcos-417.94.202605112123-0*
Red Hat OpenShift Container Platform 4.18RedHatrhcos-418.94.202604240015-0*
Red Hat OpenShift Container Platform 4.19RedHatrhcos-4.19.9.6.202605201155-0*
RHEL-8 based Middleware ContainersRedHatrhpam-7/rhpam-businesscentral-monitoring-rhel8:7.13.5-4.1777325677*
RHEL-8 based Middleware ContainersRedHatrhpam-7/rhpam-businesscentral-rhel8:7.13.5-4.1777325711*
RHEL-8 based Middleware ContainersRedHatrhpam-7/rhpam-controller-rhel8:7.13.5-4.1777325710*
RHEL-8 based Middleware ContainersRedHatrhpam-7/rhpam-dashbuilder-rhel8:7.13.5-3.1777325680*
RHEL-8 based Middleware ContainersRedHatrhpam-7/rhpam-kieserver-rhel8:7.13.5-4.1777325709*
RHEL-8 based Middleware ContainersRedHatrhpam-7/rhpam-process-migration-rhel8:7.13.5-4.1777325680*
RHEL-8 based Middleware ContainersRedHatrhpam-7/rhpam-smartrouter-rhel8:7.13.5-4.1777325708*
Red Hat AI Inference Server 3.2RedHatrhaiis/vllm-cuda-rhel9:1779223654*
Red Hat AI Inference Server 3.2RedHatrhaiis/vllm-rocm-rhel9:1779223651*
Red Hat AI Inference Server 3.2RedHatrhaiis/model-opt-cuda-rhel9:1780681984*
Red Hat AI Inference Server 3.3RedHatrhaiis/model-opt-cuda-rhel9:1778244559*
Red Hat AI Inference Server 3.3RedHatrhaiis/vllm-rocm-rhel9:1778244531*
Red Hat AI Inference Server 3.3RedHatrhaiis/vllm-cuda-rhel9:1778274666*
Red Hat AI Inference Server 3.3RedHatrhaiis/vllm-spyre-rhel9:1778244546*
Red Hat Discovery 2RedHatdiscovery/discovery-server-rhel9:1778101579*
Red Hat Discovery 2RedHatdiscovery/discovery-ui-rhel9:1778156756*
Red Hat Hardened ImagesRedHatlibarchive-main-3.8.7-1.hum1*
Red Hat Insights proxy 1.5RedHatinsights-proxy/insights-proxy-container-rhel9:1776868961*
Red Hat Update Infrastructure 5RedHatrhui5/cds-rhel9:1776868774*
Red Hat Update Infrastructure 5RedHatrhui5/haproxy-rhel9:1776868744*
Red Hat Update Infrastructure 5RedHatrhui5/installer-rhel9:1776868772*
Red Hat Update Infrastructure 5RedHatrhui5/rhua-rhel9:1776868842*
Red Hat Update Infrastructure 5RedHatrhui5/cds-kubernetes-tp-rhel9:1777459441*
Red Hat Update Infrastructure 5RedHatrhui5/installer-tp-rhel9:1777454300*
Red Hat Update Infrastructure 5RedHatrhui5/rhua-tp-rhel9:1777459504*
LibarchiveUbuntudevel*
LibarchiveUbuntuesm-infra-legacy/trusty*
LibarchiveUbuntuesm-infra-legacy/xenial*
LibarchiveUbuntuesm-infra/bionic*
LibarchiveUbuntuesm-infra/focal*
LibarchiveUbuntuesm-infra/xenial*
LibarchiveUbuntujammy*
LibarchiveUbuntunoble*
LibarchiveUbuntuquesting*
LibarchiveUbunturesolute*

Potential Mitigations

  • Assume all input is malicious. Use an “accept known good” input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
  • When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, “boat” may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as “red” or “blue.”
  • Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code’s environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
  • To reduce the likelihood of introducing an out-of-bounds read, ensure that you validate and ensure correct calculations for any length argument, buffer size calculation, or offset. Be especially careful of relying on a sentinel (i.e. special character such as NUL) in untrusted inputs.

References

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