Findings

CVE-2026-32733

Halloy is an IRC application written in Rust.

Published Mar 20, 2026 · updated Jun 17, 2026 · halloy halloy

Halloy is an IRC application written in Rust. Prior to commit 0f77b2cfc5f822517a256ea5a4b94bad8bfe38b6, the DCC receive flow did not sanitize filenames from incoming requests. A remote IRC user could send a filename with path traversal sequences like and the file would be written outside the user's configured . With auto-accept enabled this required zero interaction from the victim. Starting with commit 0f77b2cfc5f822517a256ea5a4b94bad8bfe38b6, all identified code paths sanitize filenames through a shared function.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 20, 2026 · NIST NVD

    Detected

    Halloy is an IRC application written in Rust. Prior to commit 0f77b2cfc5f822517a256ea5a4b94bad8bfe38b6, the DCC receive flow did not sanitize filenames from incoming requests. A remote IRC user could send a filename with path traversal sequences like and the file would be written outside the user's configured . With auto-accept enabled this required zero interaction from the victim. Starting with

  2. Jun 17, 2026 · NIST NVD

    Updated

    Halloy is an IRC application written in Rust. Prior to commit 0f77b2cfc5f822517a256ea5a4b94bad8bfe38b6, the DCC receive flow did not sanitize filenames from incoming requests. A remote IRC user could send a filename with path traversal sequences like and the file would be written outside the user's configured . With auto-accept enabled this required zero interaction from the victim. Starting with

Affected

  • cpe halloy/halloyversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-32733

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-32733

    Halloy is an IRC application written in Rust. Prior to commit 0f77b2cfc5f822517a256ea5a4b94bad8bfe38b6, the DCC receive flow did not sanitize filenames from incoming requests. A remote IRC user could send a filename with path traversal sequences like `../../.ssh/author

    nvd.nist.gov

References