{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2026-5121 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-5121 is a high-severity vulnerability in Libarchive Libarchive, published on 30 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-5121 and fix it if it is affected.\n\nWhat it is: CVE-2026-5121 is a high-severity vulnerability in Libarchive Libarchive, published on 30 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-5121 in the wild and no public exploit code.\n\nAffected product: Libarchive Libarchive. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-5121/ (Markdown: https://insights.sbomify.com/CVE-2026-5121/index.md)","id":"CVE-2026-5121","markdown":"https://insights.sbomify.com/CVE-2026-5121/index.md","name":"CVE-2026-5121","record":{"aliases":["AZL-81504","CLSA-2026-1777365744","CLSA-2026-1777366496","DEBIAN-CVE-2026-5121","ECHO-fe78-e324-d857","GHSA-2vwv-vqpv-v8vc","MINI-q2gc-42gp-x2rr","UBUNTU-CVE-2026-5121"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Libarchive library","requires_auth":"none","summary":"A remote attacker can achieve arbitrary code execution on 32-bit systems by exploiting an integer overflow in Libarchive's ISO9660 processing via a crafted image.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"libarchive","vendor":"libarchive"},{"product":"enterprise_linux","vendor":"redhat"},{"product":"hardened_images","vendor":"redhat"},{"product":"openshift_container_platform","vendor":"redhat"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Libarchive: libarchive: arbitrary code execution via integer overflow in iso9660 image processing","id":"CVE-2026-5121","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"libarchive:libarchive","products":["libarchive:libarchive","redhat:enterprise_linux","redhat:hardened_images","redhat:openshift_container_platform"],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":44,"next":{"headline":"osrg GoBGP BGP OPEN Message bgp.go DecodeFromBytes access control","id":"CVE-2026-5122"},"packages":[],"prev":{"headline":"Race Condition vulnerability affecting BIOVIA Workbook from Release 2021 through Release 2026","id":"CVE-2026-5120"},"products":["Cert Manager support for Red Hat OpenShift release 1.17","Cert Manager support for Red Hat OpenShift release 1.18","Cert Manager support for Red Hat OpenShift release 1.20","RHEL-8 based Middleware Containers","Red Hat AI Inference Server 3.2","Red Hat AI Inference Server 3.3","Red Hat Discovery 2","Red Hat Enterprise Linux 10","Red Hat Enterprise Linux 6","Red Hat Enterprise Linux 7 Extended Lifecycle Support","Red Hat Enterprise Linux 8","Red Hat Enterprise Linux 8.2 Advanced Update Support","Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support","Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On","Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support","Red Hat Enterprise Linux 8.6 Telecommunications Update Service","Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions","Red Hat Enterprise Linux 8.8 Telecommunications Update Service","Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions","Red Hat Enterprise Linux 9","Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions","Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions","Red Hat Enterprise Linux 9.4 Extended Update Support","Red Hat Enterprise Linux 9.6 Extended Update Support","Red Hat Hardened Images","Red Hat Insights proxy 1.5","Red Hat OpenShift Container Platform 4.12","Red Hat OpenShift Container Platform 4.13","Red Hat OpenShift Container Platform 4.14","Red Hat OpenShift Container Platform 4.15","Red Hat OpenShift Container Platform 4.16","Red Hat OpenShift Container Platform 4.17","Red Hat OpenShift Container Platform 4.18","Red Hat OpenShift Container Platform 4.19","Red Hat Update Infrastructure 5"],"published":"2026-03-30","related":[{"cvss_score":9.1,"headline":"Memory corruption in n/a","id":"CVE-2024-37407","kev_date_added":null,"published":"2024-06-08"},{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2016-1541","kev_date_added":null,"published":"2016-05-07"},{"cvss_score":8.6,"headline":"Integer overflow in n/a","id":"CVE-2016-6250","kev_date_added":null,"published":"2016-09-21"},{"cvss_score":7.8,"headline":"Libarchive: double free at archive_read_format_rar_seek_data() in archive_read_support_format_rar.c","id":"CVE-2025-5914","kev_date_added":null,"published":"2025-06-09"},{"cvss_score":7.8,"headline":"Memory corruption in n/a","id":"CVE-2024-48957","kev_date_added":null,"published":"2024-10-10"},{"cvss_score":7.8,"headline":"Memory corruption in n/a","id":"CVE-2024-48958","kev_date_added":null,"published":"2024-10-10"},{"cvss_score":7.8,"headline":"Integer overflow in n/a","id":"CVE-2016-4300","kev_date_added":null,"published":"2016-09-21"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-14","vendors":["Red Hat"]},"summary":"A remote attacker can achieve arbitrary code execution on 32-bit systems by exploiting an integer overflow in Libarchive's ISO9660 processing via a crafted image.","url":"https://insights.sbomify.com/CVE-2026-5121/"}