High 7.6Published Oct 2, 2026

CVE-2026-103958Server-side request forgery in the tool server and remote agent connection handling in Loom for AWS

Updated under an hour ago (2026-10-19 07:30 UTC)

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It affects AWS loom. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.33%, higher than 25% of scored CVEs.

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Exploited in the last 30 days

Server-side request forgery in the tool server and remote agent connection handling in Loom for AWS before 1.7.0 might allow an authenticated remote user to obtain the credentials of the application's own container role and to read responses from arbitrary internal network locations, via a crafted connection address supplied when registering, updating or testing a tool server or remote agent. To remediate this issue, users should upgrade to version 1.7.0 or later.

CVSS: 7.6 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N
Weakness (CWE): CWE-918
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.33% (percentile 25)
Assigned by: AMZN
NVD analysis: Awaiting Analysis
Record last updated: Oct 9, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

AWS loom aws:loom (from the name)	before 1.7.0	CNA record

References

https://github.com/awslabs/loom/releases/tag/v1.7.0release-notes, patch
https://aws.amazon.com/security/security-bulletins/2026-124-aws/vendor-advisory
https://github.com/awslabs/loom/security/advisories/GHSA-w6g6-h8pv-6mc7third-party-advisory

The CVE record on cve.org NVD's entry

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.