CVE-2026-76243: Improper Authorization in eidetic-labs stigmem
Description
stigmem versions before 0.9.0a2 and version 0.9.0 have an improper authorization vulnerability that allows unauthenticated access when authentication is disabled on non-loopback deployments. This enables attackers to perform read, write, and federation operations anonymously if nodes are exposed outside local development environments.
CVSS v4.0
Score 9.2critical
Affected software
eidetic-labs
stigmem
pkg:github/eidetic-labs/stigmemRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-76243 is an improper authorization vulnerability in eidetic-labs stigmem affecting versions >=0 and <0.9.0a2, as well as version 0.9.0. When authentication is disabled on deployments not limited to loopback interfaces, unauthenticated attackers can access the system with anonymous identity. This access includes the ability to perform read, write, and federation operations, potentially compromising data integrity and confidentiality in exposed environments.
Potential Impact
The vulnerability allows unauthenticated attackers to perform critical operations such as reading, writing, and federating data on stigmem nodes exposed outside local development environments. This can lead to unauthorized data access and modification, posing a high risk to confidentiality, integrity, and availability of the affected systems.
Mitigation Recommendations
No explicit patch or remediation information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid disabling authentication on non-loopback deployments and restrict exposure of stigmem nodes to trusted environments only.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-19T11:38:33.225Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a85bc80acd9273b492f4a38
Added to database: 08/19/2026, 14:24:00 UTC
Last enriched: 09/11/2026, 08:32:31 UTC
Last updated: 10/04/2026, 10:02:29 UTC
Views: 64
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