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Vulnerability record · public intelligence
CVE-2026-54581
UNKNOWN

mport bootstrap index fetch can continue after hash verification failure

Published Sep 17, 2026 · Updated Oct 23, 2026

Severity · CVSSUNKNOWN · Not scored
Known exploitationNot listed
EPSS / likelihood0.22%
QFinch risk scoreNot available

Original summary

Normalized public record · Updated Oct 23, 2026

mport bootstrap index fetch can continue after hash verification failure

Publisher and source text is retained separately from QFinch interpretation.

QFinch assessment

mport is the MidnightBSD Package Manager. Prior to 2.7.8, the mport_fetch_bootstrap_index() function in libmport/fetch.c could return success when bootstrap index hash verification encountered a missing or invalid hash because the failure path did not preserve a fatal result. A network attacker or compromised mirror able to alter bootstrap index content or its transport path could therefore cause mport to proceed with an unverified or tampered bootstrap package index. This issue is fixed in version 2.7.8.

Evidence: public source records

Affected products

Affected scope reported by the available public evidence
Affected package, product or rangeFix status
Consult the referenced vendor advisory for affected versions.Consult source advisory

Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.

Remediation

Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.

  1. Confirm the affected product and reachable code path exist in your environment.
  2. Apply the vendor-supported patch or mitigation from the primary advisory.
  3. Rescan the exact deployed revision and retain verification evidence.
Review primary references

Evidence coverage

CVENVDEPSS
SSVC priority
LOW
Confidence
Not available
Aliases
None reported

Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.

Sources and record history

  1. Security advisory ↗
  2. Source repository ↗
  3. Source repository ↗
  4. Patch commit ↗
  5. Patch commit ↗
  6. Source repository ↗

Record history

Published Sep 17, 2026 · Last refreshed Oct 23, 2026