{"answers":{"affected":"3 open source packages ship an affected version, including github.com/Tencent/WeKnora. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30856 exists.","fix":"Upgrade github.com/Tencent/WeKnora to 0.3.0 or later.","what":"CVE-2026-30856 is a medium-severity code injection vulnerability in Tencent WeKnora, published on 7 Mar 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-30856 and fix it if it is affected.\n\nWhat it is: CVE-2026-30856 is a medium-severity code injection vulnerability in Tencent WeKnora, published on 7 Mar 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-30856 exists.\n\nAffected packages and fixed versions:\n- github.com/Tencent/WeKnora (Go): affected all versions; no fix listed\n- github.com/Tencent/WeKnora (Go): affected all versions; fixed in 0.3.0\n- github.com/Tencent/WeKnora (Go): affected all versions; fixed in 0.3.0\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-2026-30856/ (Markdown: https://insights.sbomify.com/CVE-2026-30856/index.md)","id":"CVE-2026-30856","markdown":"https://insights.sbomify.com/CVE-2026-30856/index.md","name":"CVE-2026-30856","record":{"aliases":["GHSA-67q9-58vj-32qx","GO-2026-4638"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"LLM document framework","requires_auth":"low_privilege","summary":"Attackers can hijack tool execution in WeKnora via MCP naming collisions, enabling prompt injection, data exfiltration, and unauthorized tool execution.","user_interaction":"required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"weknora","vendor":"tencent"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-706","name":"Use of Incorrectly-Resolved Name or Reference"}],"description":"WeKnora is an LLM-powered framework designed for deep document understanding and semantic retrieval. Prior to version 0.3.0,  a vulnerability involving tool name collision and indirect prompt injection allows a malicious remote MCP server to hijack tool execution. By exploiting an ambiguous naming convention in the MCP client (mcp_{service}_{tool}), an attacker can register a malicious tool that overwrites a legitimate one (e.g., tavily_extract). This enables the attacker to redirect LLM execution flow, exfiltrate system prompts, context, and potentially execute other tools with the user's privileges. This issue has been patched in version 0.3.0.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"WeKnora: Tool Execution Hijacking via Ambigous Naming Convention In MCP client and Indirect Prompt Injection","id":"CVE-2026-30856","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":3,"n_references":1,"next":{"headline":"WeKnora: Unauthorized Cross‑Tenant Knowledge Base Cloning","id":"CVE-2026-30857"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/Tencent/WeKnora","purl":"pkg:golang/github.com/Tencent/WeKnora","source":"GO-2026-4638"},{"ecosystem":"Go","fixed":["0.3.0"],"introduced":["0"],"last_affected":[],"package":"github.com/Tencent/WeKnora","purl":null,"source":"GHSA-67q9-58vj-32qx"},{"ecosystem":"Go","fixed":["0.3.0"],"introduced":["0"],"last_affected":[],"package":"github.com/Tencent/WeKnora","purl":"pkg:golang/github.com/Tencent/WeKnora","source":"GHSA-67q9-58vj-32qx"}],"prev":{"headline":"WeKnora: Broken Access Control in Tenant Management","id":"CVE-2026-30855"},"products":["WeKnora"],"published":"2026-03-07","related":[{"cvss_score":10,"headline":"WeKnora: Remote Code Execution via SQL Injection Bypass in AI Database Query Tool","id":"CVE-2026-30860","kev_date_added":null,"published":"2026-03-07"},{"cvss_score":10,"headline":"WeKnora: Remote Code Execution (RCE) via Command Injection in MCP Stdio Configuration Validation","id":"CVE-2026-30861","kev_date_added":null,"published":"2026-03-07"},{"cvss_score":10,"headline":"WeKnora has Command Injection in MCP stdio test","id":"CVE-2026-22688","kev_date_added":null,"published":"2026-01-10"},{"cvss_score":8.8,"headline":"WeKnora: Broken Access Control in Tenant Management","id":"CVE-2026-30855","kev_date_added":null,"published":"2026-03-07"},{"cvss_score":6.9,"headline":"Tencent WeKnora test testEmbeddingModel server-side request forgery","id":"CVE-2025-11046","kev_date_added":null,"published":"2025-09-26"},{"cvss_score":6.5,"headline":"WeKnora: DNS Rebinding Vulnerability in web_fetch Tool Allows SSRF to Internal Resources","id":"CVE-2026-30858","kev_date_added":null,"published":"2026-03-07"},{"cvss_score":5.9,"headline":"WeKnora: SSRF via Redirection","id":"CVE-2026-30247","kev_date_added":null,"published":"2026-03-07"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-09","vendors":["Tencent"]},"summary":"Attackers can hijack tool execution in WeKnora via MCP naming collisions, enabling prompt injection, data exfiltration, and unauthorized tool execution.","url":"https://insights.sbomify.com/CVE-2026-30856/"}