CVE-2026-91164Network attack vectorHinoki check available

IP restriction bypass via unchecked API tokens

Published Sep 21, 2026 · Updated Sep 21, 2026

Incorrect authorization in Warpgate 0.23.0 through 0.27.2 allows remote authenticated users to bypass API token IP restrictions. ConfigProvider::validate_api_token resolves a token by secret and expiry, and its HTTP caller creates RequestAuthorization::UserToken without checking the owner's allowed_ip_ranges against the trusted client address. Exploitation requires a valid token for an IP-restricted user and permits API access from a prohibited network location; deployments without those restrictions and non-HTTP-token paths are unaffected.

CVSS severity4.3
Medium
EPSS probability0.42%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Incorrect authorization in Warpgate 0.23.0 through 0.27.2 allows remote authenticated users to bypass API token IP restrictions. ConfigProvider::validate_api_token resolves a token by secret and expiry, and its HTTP caller creates RequestAuthorization::UserToken without checking the owner's allowed_ip_ranges against the trusted client address. Exploitation requires a valid token for an IP-restricted user and permits API access from a prohibited network location; deployments without those restrictions and non-HTTP-token paths are unaffected.

The record

CVE
CVE-2026-91164
Published
Sep 21, 2026
Updated
Sep 21, 2026
Vendor
Warptech Industries
Product
Warpgate
Classifications
CWE-863, CWE-284, T1550.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 21, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=>= 0.23.0, < 0.27.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Warptech Industries · Warpgateversion=>= 0.23.0, < 0.27.3

Published CVSS scores

4.3GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
CWE-284Improper Access Control
T1550.001Application Access Token

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

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Your stack

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