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CVE Vulnerabilities

CVE-2026-5121

Integer Overflow or Wraparound

Published: Mar 30, 2026 | Modified: Jun 10, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
7.5 MODERATE
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-2026-5121
CWEhttps://cwe.mitre.org/data/definitions/190.html

A flaw was found in libarchive. On 32-bit systems, an integer overflow vulnerability exists in the zisofs block pointer allocation logic. A remote attacker can exploit this by providing a specially crafted ISO9660 image, which can lead to a heap buffer overflow. This could potentially allow for arbitrary code execution on the affected system.

Weakness

The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

Affected Software

NameVendorStart VersionEnd Version
LibarchiveLibarchive- (including)- (including)
Hardened_imagesRedhat- (including)- (including)
Openshift_container_platformRedhat4.0 (including)4.0 (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)
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-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

  • Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
  • If possible, choose a language or compiler that performs automatic bounds checking.
  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
  • Use libraries or frameworks that make it easier to handle numbers without unexpected consequences.
  • Examples include safe integer handling packages such as SafeInt (C++) or IntegerLib (C or C++). [REF-106]
  • Perform input validation on any numeric input by ensuring that it is within the expected range. Enforce that the input meets both the minimum and maximum requirements for the expected range.
  • Use unsigned integers where possible. This makes it easier to perform validation for integer overflows. When signed integers are required, ensure that the range check includes minimum values as well as maximum values.
  • Understand the programming language’s underlying representation and how it interacts with numeric calculation (CWE-681). Pay close attention to byte size discrepancies, precision, signed/unsigned distinctions, truncation, conversion and casting between types, “not-a-number” calculations, and how the language handles numbers that are too large or too small for its underlying representation. [REF-7]
  • Also be careful to account for 32-bit, 64-bit, and other potential differences that may affect the numeric representation.

References

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