{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-109153 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-109153 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-109153 is a medium-severity path traversal vulnerability in MosaicML Composer, published on 13 Oct 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-2026-109153 and fix it if it is affected.\n\nWhat it is: CVE-2026-109153 is a medium-severity path traversal vulnerability in MosaicML Composer, published on 13 Oct 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-2026-109153 in the wild and no public exploit code.\n\nAffected product: MosaicML Composer. 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-2026-109153/ (Markdown: https://insights.sbomify.com/CVE-2026-109153/index.md)","id":"CVE-2026-109153","markdown":"https://insights.sbomify.com/CVE-2026-109153/index.md","name":"CVE-2026-109153","record":{"aliases":["GHSA-9h32-g52h-pxjh"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"MosaicML Composer library","requires_auth":"none","summary":"Remote attackers can exploit path traversal in MosaicML Composer checkpoint extraction to read or modify arbitrary files.","user_interaction":"required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X","version":"4.0"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"A vulnerability was detected in MosaicML Composer up to 0.32.1. This affects the function tarball.extractall of the file composer/utils/checkpoint.py of the component Checkpoint Extraction. The manipulation results in path traversal. The attack can be executed remotely. The vendor was contacted early about this disclosure.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"MosaicML Composer Checkpoint Extraction checkpoint.py tarball.extractall path traversal","id":"CVE-2026-109153","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"DeepPavlov Model Download untar path traversal","id":"CVE-2026-109155"},"packages":[],"prev":{"headline":"jbardin scp.py SCP Receive _recv_pushd path traversal","id":"CVE-2026-109152"},"products":["Composer"],"published":"2026-10-13","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"partial"},"state":"PUBLISHED","updated":"2026-10-16","vendors":["MosaicML"]},"summary":"Remote attackers can exploit path traversal in MosaicML Composer checkpoint extraction to read or modify arbitrary files.","url":"https://insights.sbomify.com/CVE-2026-109153/"}