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High 7.9Published Sep 4, 2026

CVE-2026-85649(Holloway) Chew, Kean Ho's Actualizer v1.2.0 and earlier contains a fail-open password validation vulnerability in the Alpha user and root user password loops of Shell/debian-minbase-install.sh.

Updated under an hour ago ()

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It affects chewkeanho software-actualizer. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

(Holloway) Chew, Kean Ho's Actualizer v1.2.0 and earlier contains a fail-open password validation vulnerability in the Alpha user and root user password loops of Shell/debian-minbase-install.sh. The installer invokes mkpasswd to generate yescrypt password hashes but does not check the command's return value and unconditionally accepts the result. If mkpasswd fails to generate a yescrypt hash, for example because an incompatible mkpasswd implementation or an environment without yescrypt support is used, the resulting password hash variable can be empty and the build proceeds. The resulting image can therefore contain empty password fields for the root and alpha accounts, potentially permitting passwordless authentication depending on the authentication configuration.

CVSS
7.9 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Weakness (CWE)
CWE-636, CWE-252
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
CIRCL
NVD analysis
Awaiting Analysis
Record last updated
Sep 4, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
chewkeanho software-actualizer
chewkeanho:software_actualizer (from the name)
through 1.2.0
CNA record

References

  • release-notes, patch
  • patch
  • technical-description

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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