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AWS Addresses Critical Vulnerabilities in Loom AI Platform

AWS Addresses Critical Vulnerabilities in Loom AI Platform

First seen 5 Oct 2026, 15:25 UTC • •
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ThreatCluster AI
ThreatCluster •October 5, 2026 at 16:27 UTC
  • •Three critical vulnerabilities in AWS Loom platform require immediate attention.
  • •CVE-2026-103956 allows unauthenticated administrative access to the agent control plane.
  • •Users must upgrade to Loom version 1.7.0 to mitigate these vulnerabilities.

AWS has released security updates for three critical vulnerabilities in its Loom platform, which orchestrates AI agents. The most severe flaw, CVE-2026-103956, allows unauthenticated administrative access if no identity provider is configured. Another vulnerability, CVE-2026-103957, permits credential disclosure via OAuth2 handling, while CVE-2026-103958 enables redirection of backend connection requests to internal endpoints. Users are urged to upgrade to Loom version 1.7.0 to mitigate these risks. The vulnerabilities were disclosed in Security Bulletin 2026-124-AWS on October 2, 2026, and the first public proof-of-concept for CVE-2026-103956 was released on October 4, 2026. Organizations are advised to secure their deployments immediately to prevent potential exploitation.

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Timeline

2026-10-02
Security Bulletin 2026-124-AWS published
AWS disclosed three critical vulnerabilities in Loom, urging users to upgrade to version 1.7.0.
aws.amazon.com
2026-10-02
CVE-2026-103957 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-10-02
CVE-2026-103958 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-10-02
CVE-2026-104019 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-10-04
First public PoC for CVE-2026-103956 released
A proof-of-concept for the authentication bypass vulnerability was made public, increasing the urgency for users to patch.
Gbhackers

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Common questions

What versions of Loom are affected?
Loom versions prior to 1.7.0 are affected, especially those without a configured identity provider.
How critical are these vulnerabilities?
The vulnerabilities are classified as critical, with CVE-2026-103956 having a CVSS score of 10.0.
What immediate actions should I take?
Upgrade to Loom version 1.7.0 as soon as possible to mitigate these vulnerabilities.