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CVE-2026-55441

8.6
High
EPSS 0.18%Patch availableJun 27, 2026

Arbitrary command execution via templating in mise dev tool

common questions

Is CVE-2026-55441 being exploited?

Not confirmed. CVE-2026-55441 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.18% probability of exploitation in the next 30 days.

How severe is CVE-2026-55441?

CVE-2026-55441 is rated High with a CVSS score of 8.6. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2026-55441?

Yes. A fix has been recorded for CVE-2026-55441. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2026-55441 affect?

CVE-2026-55441 affects mise (Dev Tools). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-55441?

Upgrade to 2026.6.4 or newer

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary
technical analysis
affected
mise (Dev Tools)
impact

Remote code execution via exec() in rendered fields during task listing; attacker can run arbitrary commands.

action required

Patch when possible

affected versions
jdx mise
  • affected< 2026.6.4

As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.

how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
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