{"id":"CVE-2026-32733","state":"PUBLISHED","title":"Halloy has a file transfer path traveral vulnerability","description":"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.","publishedAt":"2026-03-20T22:37:39.365Z","updatedAt":"2026-03-24T02:06:30.856Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"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","source":"GitHub_M"},"assigner":"GitHub_M","products":["squidowl halloy"],"affected":[{"vendor":"squidowl","product":"halloy","versions":[{"version":"<= 2026.4","status":"affected"}]}],"references":["https://github.com/squidowl/halloy/security/advisories/GHSA-fqrv-rfg4-rv89","https://github.com/squidowl/halloy/commit/0f77b2cfc5f822517a256ea5a4b94bad8bfe38b6"],"weaknesses":["CWE-22"],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/32xxx/CVE-2026-32733.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-32733","state":"PUBLISHED","datePublished":"2026-03-20T22:37:39.365Z","dateUpdated":"2026-03-24T02:06:30.856Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-13T15:02:00.627Z"},"containers":{"cna":{"title":"Halloy has a file transfer path traveral vulnerability","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"squidowl","product":"halloy","versions":[{"version":"<= 2026.4","status":"affected"}]}],"references":[{"url":"https://github.com/squidowl/halloy/security/advisories/GHSA-fqrv-rfg4-rv89","name":"https://github.com/squidowl/halloy/security/advisories/GHSA-fqrv-rfg4-rv89","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/squidowl/halloy/commit/0f77b2cfc5f822517a256ea5a4b94bad8bfe38b6","name":"https://github.com/squidowl/halloy/commit/0f77b2cfc5f822517a256ea5a4b94bad8bfe38b6","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH","vectorString":"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","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-20T22:37:39.365Z"},"source":{"advisory":"GHSA-fqrv-rfg4-rv89","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-24T02:05:28.617783Z","id":"CVE-2026-32733","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-24T02:06:30.856Z"}}]}}}