VulnerabilityAnalyzed

CVE-2026-32805

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.

HIGH 8.3EPSS 0.43%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

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.

CVSS 4.0: 8.3 HIGHCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 0.43% probability · 37th percentile
CISA KEV: Not listed
Weakness: CWE-22
Affected: ctfer-io/romeo
Source: security-advisories@github.com

References

https://github.com/ctfer-io/romeo/commit/c2ebcfb9f305fd5f6ef68858de82507dbac10263Patch
https://github.com/ctfer-io/romeo/security/advisories/GHSA-p799-g7vv-f279Exploit, Vendor Advisory
https://github.com/ctfer-io/romeo/security/advisories/GHSA-p799-g7vv-f279Exploit, Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.