CVE-2026-32805: Ctfer-Io Romeo

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

Romeo gives the capability to reach high code coverage of Go ≥1.20 apps by helping to measure code coverage for functional and integration tests within GitHub Actions. Prior to version 0.2.2, the `sanitizeArchivePath` function in `webserver/api/v1/decoder.go` (lines 80-88) is vulnerable to a path traversal bypass due to a missing trailing path separator in the `strings.HasPrefix` check. A crafted tar archive can write files outside the intended destination directory. Version 0.2.2 fixes the issue.

Affected products

• Ctfer-Io Romeo: before 0.2.2 (fixed in 0.2.2)

Published 2026-03-18. Last modified 2026-06-17.