CVE-2026-55601
highMultiTail is a utility for monitoring multiple log files in one terminal.
MultiTail is a utility for monitoring multiple log files in one terminal. In version 7.1.5 and earlier, the -ex and -eX execute-on-match feature appended attacker-controlled matched input to a configured command inside double quotes, then check_filter_exec() in mt.c passed the constructed command through execute_program() in exec.c to sh -c. Partial escaping left shell metacharacters such as command substitution active, allowing an attacker who could influence monitored input to execute commands as the user running MultiTail. No fixed release is available as of this review.
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/folkertvanheusden/multitail/commit/84f304e140261034e33796bab81e9bf4f09d... security-advisories@github.com
- https://github.com/folkertvanheusden/multitail/issues/56 security-advisories@github.com
- https://github.com/folkertvanheusden/multitail/security/advisories/GHSA-54vm-wwx8-856h security-advisories@github.com
- https://github.com/folkertvanheusden/multitail/security/advisories/GHSA-54vm-wwx8-856h 134c704f-9b21-4f2e-91b3-4a467353bcc0