{"id":"CVE-2026-50181","aliases":["GHSA-fg23-3346-88f5","PYSEC-2026-2578"],"url":"https://o3.security/vulnerability/CVE-2026-50181","summary":"Langroid: Path traversal in the file tools allows read/write outside configured current directory","details":"Langroid is a framework for building large-language-model-powered applications. Prior to version 0.64.0, Langroid's `ReadFileTool` and `WriteFileTool` appear to treat `curr_dir` as the intended working-directory boundary for file operations. However, the tools only change the process working directory to `curr_dir` and then operate on the user-supplied `file_path` without resolving and enforcing that the final path remains inside `curr_dir`. As a result, a tool caller can supply path traversal sequences such as `../secret.txt` to read files outside the configured current directory, or `../written_by_tool.txt` to write files outside that directory. This can impact applications that expose Langroid file tools to an LLM agent, user-controlled tool call, or delegated coding/documentation agent while relying on `curr_dir` to restrict file access to a project/workspace directory. Version 0.64.0 patches the issue.","published":"2026-07-09T23:44:46.559Z","modified":"2026-08-12T03:51:36.206399781Z","cvss":{"score":7.1,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"},"epss":{"score":0.00234,"percentile":0.14588,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"langroid","fixedVersion":"0.64.0"}],"fix":{"url":"https://github.com/langroid/langroid/commit/56e2756ecab70a70a7e6edbee2f2187b8484683e","label":"langroid/langroid@56e2756"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50181.json"},{"type":"ADVISORY","url":"https://github.com/langroid/langroid/security/advisories/GHSA-fg23-3346-88f5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50181"},{"type":"FIX","url":"https://github.com/langroid/langroid/commit/56e2756ecab70a70a7e6edbee2f2187b8484683e"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:36.206399781Z"}}