CVE-2026-103956 Loom for AWS - Authentication Bypass

Loom for AWS < 1.6.1 contains a broken authentication caused by missing authentication for critical functions in the authentication dependency, letting remote actors obtain super-admin authority over the agent control plane, exploit requires no identity provider configured.

CVSS base score 10.0 /10
Critical
CISA KEV
Not listed
Public exploit
Proof of concept available
Authentication
Not required
EPSS
0.47% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Privilege Escalation, Information Disclosure, Data Tampering
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Published
2 October 2026
Updated
15 October 2026
Weakness
CWE-306

Vendor fix

Upgrade to version 1.6.1 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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