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Vulnerability record · CVE-2026-91989 · published 15 September 2026

CVE-2026-91989: Path traversal vulnerability

atomic-agents-stack before 1.1.0 contains a path traversal vulnerability in the dashboard HTTP server that allows remote attackers to read arbitrary files by supplying directory traversal sequences in request paths. Attackers can bypass path containment checks by including '../' segments in requests to the DashboardHandler.do_GET endpoint to access files outside the intended agents_root directory.

8.7 CVSS 4.0 High EPSS 1.3% · top 30.0% CWE-22 · Path traversal Deferred
8.7CVSS 4.0 base score
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
24 Sep 2026Last modified by NVD

Description

atomic-agents-stack before 1.1.0 contains a path traversal vulnerability in the dashboard HTTP server that allows remote attackers to read arbitrary files by supplying directory traversal sequences in request paths. Attackers can bypass path containment checks by including '../' segments in requests to the DashboardHandler.do_GET endpoint to access files outside the intended agents_root directory.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/dep0we/atomic-agents-stack/security/advisories/GHSA-rm43-82j9-r4mj
https://www.vulncheck.com/advisories/atomic-agents-stack-before-1.1.0-path-traversal-via-dashboard-serve-py

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Source: NIST National Vulnerability Database (record CVE-2026-91989), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.