{"id":"CVE-2024-21624","aliases":["GHSA-59j8-776v-xxxg","PYSEC-2024-37"],"url":"https://o3.security/vulnerability/CVE-2024-21624","summary":"Potential Information Leak in User-Constructed Message Templates in nonebot2","details":"### Impact\nThis security advisory pertains to a potential information leak (e.g., environment variables) in instances where developers utilize `MessageTemplate` and incorporate user-provided data into templates.\n\n### Patches\nThe identified vulnerability has been remedied in fix #2509 and will be included in versions released after 2.1.3. Users are strongly advised to upgrade to these patched versions to safeguard against the vulnerability.\n\n### Workarounds\nA temporary workaround involves filtering underscores before incorporating user input into the message template.\n\n### References\n- [Pull Request #2509](https://github.com/nonebot/nonebot2/pull/2509)\n- [CWE-1336](https://cwe.mitre.org/data/definitions/1336.html)","published":"2024-02-09T22:16:49.974Z","modified":"2026-08-12T03:51:34.416836012Z","cvss":{"score":5.7,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"nonebot2","fixedVersion":"2.2.0"}],"fix":{"url":"https://github.com/nonebot/nonebot2/pull/2509","label":"nonebot/nonebot2#2509"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/21xxx/CVE-2024-21624.json"},{"type":"ADVISORY","url":"https://github.com/nonebot/nonebot2/security/advisories/GHSA-59j8-776v-xxxg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-21624"},{"type":"FIX","url":"https://github.com/nonebot/nonebot2/pull/2509"},{"type":"WEB","url":"https://github.com/nonebot/nonebot2/commit/b65b3b438c95894654fd9081139989c757bdc6c1"},{"type":"PACKAGE","url":"https://github.com/nonebot/nonebot2"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/nonebot2/PYSEC-2024-37.yaml"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:34.416836012Z"}}