CVE-2026-54577 mport audit can inspect the wrong package when options are present
The mport audit command may inspect the wrong package when options are used, potentially leaving vulnerable packages unidentified.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-54577?
CVE-2026-54577 is a low-severity vulnerability in MidnightBSD mport, published on 17 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
mport is the MidnightBSD Package Manager. Prior to 2.7.8, the audit command in mport/mport.c computed option-adjusted local_argv and local_argc values but passed the original argument entry to audit_package(). When an operator or automation used an option such as -r before a package name, stale optind state and the unadjusted argument could cause mport to audit the option token instead of the requested package, producing a false-negative or useless result that could leave a vulnerable package unidentified. The corrected parsing resets optind and optreset before using the adjusted local arguments. This issue is fixed in version 2.7.8.
Which versions are affected by CVE-2026-54577?
How do I fix CVE-2026-54577?
No fix has been published for CVE-2026-54577 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-54577 being exploited?
There is no known exploitation of CVE-2026-54577 in the wild and no public exploit code.
Sources
Also known as GHSA-h3m9-vj4v-c35h.