{"id":"CVE-2026-32733","summary":"Halloy has a file transfer path traveral vulnerability","details":"Halloy is an IRC application written in Rust. Prior to commit 0f77b2cfc5f822517a256ea5a4b94bad8bfe38b6, the DCC receive flow did not sanitize filenames from incoming `DCC SEND` requests. A remote IRC user could send a filename with path traversal sequences like `../../.ssh/authorized_keys` and the file would be written outside the user's configured `save_directory`. With auto-accept enabled this required zero interaction from the victim. Starting with commit 0f77b2cfc5f822517a256ea5a4b94bad8bfe38b6, all identified code paths sanitize filenames through a shared `sanitize_filename` function.","aliases":["GHSA-fqrv-rfg4-rv89"],"modified":"2026-08-12T03:51:31.384674370Z","published":"2026-03-20T22:37:39.365Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-22"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32733.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32733.json"},{"type":"ADVISORY","url":"https://github.com/squidowl/halloy/security/advisories/GHSA-fqrv-rfg4-rv89"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32733"},{"type":"FIX","url":"https://github.com/squidowl/halloy/commit/0f77b2cfc5f822517a256ea5a4b94bad8bfe38b6"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/squidowl/halloy","events":[{"introduced":"0"},{"fixed":"0f77b2cfc5f822517a256ea5a4b94bad8bfe38b6"}],"database_specific":{"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:halloy:halloy:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"2026.4"}]}}],"versions":["2026.4","2026.3","2026.2","2026.1.1","2026.1","2025.12","2025.11","2025.10","2025.9","2025.8","2025.7","2025.6","2025.5","2025.4","2025.3","2025.2","2025.1","2024.14","2024.13","2024.12","2024.11","2024.10","2024.9","2024.8","2024.7","2024.6","2024.5","2024.4","2024.3","2024.2","2024.1","2023.5","2023.4","2023.3","2023.2","23.1-alpha1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32733.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N"}]}