{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-77650 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-77650 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-77650 is a critical vulnerability in droundy append-only-vec, published on 21 Aug 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-2026-77650 and fix it if it is affected.\n\nWhat it is: CVE-2026-77650 is a critical vulnerability in droundy append-only-vec, published on 21 Aug 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-2026-77650 in the wild and no public exploit code.\n\nAffected product: droundy append-only-vec. 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-2026-77650/ (Markdown: https://insights.sbomify.com/CVE-2026-77650/index.md)","id":"CVE-2026-77650","markdown":"https://insights.sbomify.com/CVE-2026-77650/index.md","name":"CVE-2026-77650","record":{"aliases":["GHSA-m5g8-cx2h-cvrh","UBUNTU-CVE-2026-77650"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Rust library","requires_auth":"none","summary":"A malicious dependency in the append-only-vec Rust crate allows arbitrary code execution during project compilation via a command-and-control server.","user_interaction":"not_required","vuln_class":"supply_chain"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-506","name":"Embedded Malicious Code"}],"description":"The append-only-vec crate 0.1.9 for Rust can trigger execution of malicious code when compiling a project that uses the crate, because it has a rogue dependency that registers with a command-and-control server to offer arbitrary code execution.","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":"Supply chain in append-only-vec","id":"CVE-2026-77650","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"supply_chain","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"Supply chain in arrayref","id":"CVE-2026-77651"},"packages":[],"prev":{"headline":"Supply chain in internment","id":"CVE-2026-77649"},"products":["append-only-vec"],"published":"2026-08-21","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":"total"},"state":"PUBLISHED","updated":"2026-08-21","vendors":["droundy"]},"summary":"A malicious dependency in the append-only-vec Rust crate allows arbitrary code execution during project compilation via a command-and-control server.","url":"https://insights.sbomify.com/CVE-2026-77650/"}