{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-48101 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-48101 is a medium-severity vulnerability in mcmilk 7-Zip, published on 5 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-48101 and fix it if it is affected.\n\nWhat it is: CVE-2026-48101 is a medium-severity vulnerability in mcmilk 7-Zip, published on 5 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-48101 in the wild and no public exploit code.\n\nAffected product: mcmilk 7-Zip. 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-2026-48101/ (Markdown: https://insights.sbomify.com/CVE-2026-48101/index.md)","id":"CVE-2026-48101","markdown":"https://insights.sbomify.com/CVE-2026-48101/index.md","name":"CVE-2026-48101","record":{"aliases":["ALPINE-CVE-2026-48101","DEBIAN-CVE-2026-48101","ECHO-7b47-8f62-c1ef","MINI-p9wf-x8pp-whqr","UBUNTU-CVE-2026-48101"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"7-Zip file archiver","requires_auth":"none","summary":"An attacker can disclose uninitialized heap memory by crafting a truncated UEFI capsule file, potentially exposing sensitive data from the victim's system.","user_interaction":"required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"7-zip","vendor":"7-zip"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-908","name":"Use of Uninitialized Resource"}],"description":"7-Zip is a file archiver with a high compression ratio. Versions 9.21 through 26.00 contain an An uninitialized memory disclosure vulnerability in the UEFI capsule (.scap) parser in 7-Zip. The OpenCapsule function allocates a heap buffer of attacker-declared CapsuleImageSize (up to 1 GiB) without zero-initialization, then reads the file contents into it with ReadStream_FALSE whose return value is silently discarded. If the file is truncated, the unread tail of the buffer retains uninitialized heap memory, which is then exposed as extracted file content via GetStream. Version 26.0.1 fixes the issue.","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":"GHSL-2026-117: 7-Zip UEFI Capsule uninitialized heap memory disclosure","id":"CVE-2026-48101","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"GHSL-2026-118: 7-Zip UDF Field OOB Read","id":"CVE-2026-48102"},"packages":[],"prev":{"headline":"Payy: agg_agg trailing message slots are unconstrained and allow forged burn messages","id":"CVE-2026-48100"},"products":["7-Zip"],"published":"2026-06-05","related":[{"cvss_score":7,"headline":"7-Zip Mark of the Web Bypass","id":"CVE-2025-0411","kev_date_added":"2025-02-06","published":"2025-01-25"},{"cvss_score":10,"headline":"Other in n/a","id":"CVE-2008-6536","kev_date_added":null,"published":"2009-03-30"},{"cvss_score":8.8,"headline":"GHSL-2026-140_7-Zip: 7-Zip has a heap buffer overflow via NTFS compressed stream buffer under-allocation","id":"CVE-2026-48095","kev_date_added":null,"published":"2026-06-05"},{"cvss_score":8.8,"headline":"Privilege escalation in n/a","id":"CVE-2018-10172","kev_date_added":null,"published":"2018-04-16"},{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2016-2335","kev_date_added":null,"published":"2016-06-07"},{"cvss_score":7.8,"headline":"7-Zip Zstandard Decompression Integer Underflow Remote Code Execution Vulnerability","id":"CVE-2024-11477","kev_date_added":null,"published":"2024-11-22"},{"cvss_score":7.8,"headline":"7-Zip SquashFS File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability","id":"CVE-2023-40481","kev_date_added":null,"published":"2024-05-03"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-05","vendors":["mcmilk"]},"summary":"An attacker can disclose uninitialized heap memory by crafting a truncated UEFI capsule file, potentially exposing sensitive data from the victim's system.","url":"https://insights.sbomify.com/CVE-2026-48101/"}