{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-87795 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2026-87795 is a high-severity memory corruption vulnerability in luben zstd-jni, published on 9 Sep 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-2026-87795 and fix it if it is affected.\n\nWhat it is: CVE-2026-87795 is a high-severity memory corruption vulnerability in luben zstd-jni, published on 9 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-87795 exists.\n\nAffected product: luben zstd-jni. 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-2026-87795/ (Markdown: https://insights.sbomify.com/CVE-2026-87795/index.md)","id":"CVE-2026-87795","markdown":"https://insights.sbomify.com/CVE-2026-87795/index.md","name":"CVE-2026-87795","record":{"aliases":["CLEANSTART-2026-KX25709","CLEANSTART-2026-NE87407","CLEANSTART-2026-UR93558","CLEANSTART-2026-VU86265","CLEANSTART-2026-YH80371","CLEANSTART-2026-ZO58617","DEBIAN-CVE-2026-87795","GHSA-ff36-7w3w-g8rm","GHSA-vc57-7frc-7vqx","UBUNTU-CVE-2026-87795"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Java zstd compression library","requires_auth":"none","summary":"Attackers can trigger out-of-bounds memory reads in zstd-jni by supplying invalid parameters, causing JVM crashes and potential information disclosure.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"zstd-jni versions before 1.5.7-14 fail to validate offset and length parameters in the ZstdDictCompress constructor, allowing out-of-bounds memory reads. Attackers can supply untrusted offset or length values to read native heap memory into the compression dictionary, typically causing JVM crashes.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"zstd-jni 1.2.0 through 1.5.7-13 Out-of-Bounds Read via ZstdDictCompress","id":"CVE-2026-87795","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"Multi Uploader for Gravity Forms \u003c= 1.1.9 - Unauthenticated Arbitrary File Upload via Chunked File Upload","id":"CVE-2026-87796"},"packages":[],"prev":{"headline":"bestzip 2.2.6 and 3.0.2 Argument Injection via the Native Zip Destination","id":"CVE-2026-87794"},"products":["zstd-jni"],"published":"2026-09-09","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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-14","vendors":["luben"]},"summary":"Attackers can trigger out-of-bounds memory reads in zstd-jni by supplying invalid parameters, causing JVM crashes and potential information disclosure.","url":"https://insights.sbomify.com/CVE-2026-87795/"}