{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-1977 exists.","fix":"No fix has been published for CVE-2026-1977 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-1977 is a medium-severity code injection vulnerability in isaacwasserman mcp-vegalite-server, published on 6 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-1977 and fix it if it is affected.\n\nWhat it is: CVE-2026-1977 is a medium-severity code injection vulnerability in isaacwasserman mcp-vegalite-server, published on 6 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-1977 exists.\n\nAffected product: isaacwasserman mcp-vegalite-server. 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-2026-1977/ (Markdown: https://insights.sbomify.com/CVE-2026-1977/index.md)","id":"CVE-2026-1977","markdown":"https://insights.sbomify.com/CVE-2026-1977/index.md","name":"CVE-2026-1977","record":{"aliases":["GHSA-rcq9-4v75-4fh5"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"MCP Vega-Lite server","requires_auth":"low_privilege","summary":"Remote attackers can execute arbitrary code via the visualize_data function in the mcp-vegalite-server library due to unsafe eval usage.","user_interaction":"not_required","vuln_class":"code_injection"},"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:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-94","name":"Improper Control of Generation of Code"},{"id":"CWE-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component"}],"description":"A security vulnerability has been detected in isaacwasserman mcp-vegalite-server up to 16aefed598b8cd897b78e99b907f6e2984572c61. Affected by this vulnerability is the function eval of the component visualize_data. Such manipulation of the argument vegalite_specification leads to code injection. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The project was informed of the problem early through an issue report but has not responded yet.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"isaacwasserman mcp-vegalite-server visualize_data eval code injection","id":"CVE-2026-1977","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"kalyan02 NanoCMS User Information pagesdata.txt direct request","id":"CVE-2026-1978"},"packages":[],"prev":{"headline":"Free5GC SMF SessionDeletionResponse null pointer dereference","id":"CVE-2026-1976"},"products":["mcp-vegalite-server"],"published":"2026-02-06","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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-02-23","vendors":["isaacwasserman"]},"summary":"Remote attackers can execute arbitrary code via the visualize_data function in the mcp-vegalite-server library due to unsafe eval usage.","url":"https://insights.sbomify.com/CVE-2026-1977/"}