CVE-2026-103956

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Source

https://cve.org/CVERecord?id=CVE-2026-103956

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103956.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-103956

Aliases

GHSA-vgmj-998f-r8mp

Published

2026-10-02T19:06:06Z

Modified

2026-10-04T02:46:30Z

Severity

10.0 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H CVSS Calculator

Summary

Missing authentication for critical function in Loom for AWS

Details

Missing authentication for critical function in the authentication dependency in Loom for AWS before 1.6.1 allowed remote actors to obtain super-admin authority over the agent control plane, including registering tool servers, reading stored integration credentials, and rewriting the IAM role policies attached to managed agent roles, via any request to the application API in a deployment where no identity provider is configured.

To remediate this issue, users should upgrade to version 1.6.1 or later.

Database specific

{
    "cna_assigner":  "AMZN",
    "cwe_ids":  [
        "CWE-1188",
        "CWE-306"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103956.json"
}

References

Affected packages

Git / github.com/awslabs/loom

Affected ranges

Type

GIT

Repo

https://github.com/awslabs/loom

Events

Introduced

Fixed

ccad5665d89e659876f7175647b4a2b46e406ddf

Database specific

Show details

{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "1.6.1"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "DESCRIPTION",
        "REFERENCES"
    ]
}

Affected versions

v1.*

v1.6.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-103956.json"