EUVD-2026-78658

atomic-agents-stack before 1.1.0 contains a cost-guardrail bypass in the estimatebatchcost function that returns zero cost for unknown models not in the pricing table. Attackers can configure deployments with unknown model identifiers to bypass daily cost caps and exceed budget limits in parallel...

PT-2026-92103

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...

CVE-2026-91989: Improper Limitation of a Pathname to a Restricted Directory

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...

CVE-2026-91987: Allocation of Resources Without Limits or Throttling

atomic-agents-stack before 1.1.0 contains a cost-guardrail bypass in the estimatebatchcost function that returns zero cost for unknown models not in the pricing table. Attackers can configure deployments with unknown model identifiers to bypass daily cost caps and exceed budget limits in parallel...

PT-2026-92102

atomic-agents-stack before 1.1.0 accepts cleartext HTTP schemes in the HTTP MCP server-registry backend factory, allowing network man-in-the-middle attackers to rewrite catalog responses. Attackers can inject arbitrary command and argument values that are spawned as local subprocesses by...

CVE-2026-91988: Cleartext Transmission of Sensitive Information

atomic-agents-stack before 1.1.0 accepts cleartext HTTP schemes in the HTTP MCP server-registry backend factory, allowing network man-in-the-middle attackers to rewrite catalog responses. Attackers can inject arbitrary command and argument values that are spawned as local subprocesses by...

GHSA-J659-8XH6-5PQ5 atomic-agents-stack: Parallel helper/delegate batch reserves $0 for models absent from the pricing table, bypassing the cost-cap fan-out guard

estimatebatchcost atomicagents/agent.py looks up the per-model output price with PRICING.getmodel, , returning 0.0 for any model not in the hardcoded pricing table. checkbatchreservation then early-returns when the reservation is 0 and that an over-cap unknown-model batch raises...

Allocation of Resources Without Limits or Throttling

Overview atomic-agents-stack is a Spec + reference implementation for vault-native, multi-runtime AI agents Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling due to improper handling of unknown models in the PRICING lookup within the...

atomic-agents-stack: HTTP MCP catalog accepts cleartext http and spawns catalog-supplied commands (MITM to RCE)

The HTTP MCP server-registry backend factory atomicagents/mcpregistry/http.py, makehttpmcpserverregistrybackendfromurl accepts both http and https schemes. Catalog entries carry command/args that are type-validated but content-unrestricted, and are later spawned as local stdio subprocesses by...

GHSA-XHCR-CQFR-M3HV atomic-agents-stack: HTTP MCP catalog accepts cleartext http and spawns catalog-supplied commands (MITM to RCE)

The HTTP MCP server-registry backend factory atomicagents/mcpregistry/http.py, makehttpmcpserverregistrybackendfromurl accepts both http and https schemes. Catalog entries carry command/args that are type-validated but content-unrestricted, and are later spawned as local stdio subprocesses by...

Resources Downloaded over Insecure Protocol

Overview atomic-agents-stack is a Spec + reference implementation for vault-native, multi-runtime AI agents Affected versions of this package are vulnerable to Resources Downloaded over Insecure Protocol via the makehttpmcpserverregistrybackendfromurl process. An attacker can execute arbitrary...

PT-2026-92101

Name of the Vulnerable Software and Affected Versions atomic-agents-stack versions prior to 1.1.0 Description A cost-guardrail bypass exists in the estimate batch cost function within atomic agents/agent.py. The function uses PRICING.getmodel, to look up per-model output prices, which returns a...

Directory Traversal

Overview atomic-agents-stack is a Spec + reference implementation for vault-native, multi-runtime AI agents Affected versions of this package are vulnerable to Directory Traversal via the DashboardHandler.doGET process in the dashboard HTTP server, which constructs filesystem paths from...