CVE-2026-85100Public exploitNetwork attack vector

Denial of service via uncanceled streaming accumulation

Published Sep 3, 2026 · Updated Sep 3, 2026

Resource exhaustion in 2FastLabs Agent Squad 1.1.0 through 1.1.4 allows remote authenticated users to crash streaming applications. AgentSquad.routeRequest drains the provider stream and appends every chunk to an unbounded in-memory string after the client disconnects. Reachability requires an endpoint using the TypeScript streaming workflow and a prompt or task that elicits a long response; memory exhaustion can terminate the process or container.

CVSS severity4.3
Medium
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Resource exhaustion in 2FastLabs Agent Squad 1.1.0 through 1.1.4 allows remote authenticated users to crash streaming applications. AgentSquad.routeRequest drains the provider stream and appends every chunk to an unbounded in-memory string after the client disconnects. Reachability requires an endpoint using the TypeScript streaming workflow and a prompt or task that elicits a long response; memory exhaustion can terminate the process or container.

The record

CVE
CVE-2026-85100
Published
Sep 3, 2026
Updated
Sep 3, 2026
Vendor
2FastLabs
Product
Agent Squad
Classifications
CWE-400, CWE-404, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.1.0
  2. Affected versionversion=1.1.1
  3. Affected versionversion=1.1.2
  4. Affected versionversion=1.1.3
  5. Affected versionversion=1.1.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

2FastLabs · Agent Squadversion=1.1.0; version=1.1.1; version=1.1.2; version=1.1.3; version=1.1.4

Published CVSS scores

2.1VulDB CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
4.0VulDB CNAAV:N/AC:L/Au:S/C:N/I:N/A:P
4.3VulDB CNACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
CWE-404Improper Resource Shutdown or Release
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo