CVE-2026-105769 kaniko - Information Disclosure

kaniko < 1.25.20 contains an information disclosure caused by improper hostname validation in Azure Container Registry credential helper, letting attackers obtain Azure AD access tokens by referencing images on attacker-controlled lookalike hosts, exploit requires crafted Dockerfile referencing malicious registry.

CVSS base score 9.3 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Information Disclosure
Impact
Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Published
2 November 2026
Updated
3 November 2026
Weakness
CWE-346

Vendor fix

Upgrade to version 1.25.20 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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