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Common Weakness Enumeration

CWE-290

Allowed

Authentication Bypass by Spoofing

Abstraction: Base · Status: Incomplete

This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

1076 vulnerabilities reference this CWE, most recent first.

CVE-2026-54308 (GCVE-0-2026-54308)

Vulnerability from cvelistv5 – Published: 2026-06-23 15:42 – Updated: 2026-06-24 13:59
VLAI
Title
n8n: Missing Token Validation on Microsoft Agent 365 Trigger Node
Summary
n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, the MicrosoftAgent365Trigger and StripeTrigger node did not validate that inbound requests. As a result, an unauthenticated attacker who knows the webhook URL could submit a forged payload and cause the workflow to execute with attacker-controlled data. This vulnerability is fixed in 2.25.7 and 2.26.2.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-24 13:58 UTC
CWE
  • CWE-290 - Authentication Bypass by Spoofing
References
Impacted products
Vendor Product Version
n8n-io n8n Affected: >= 2.26.0, < 2.26.2
Affected: < 2.25.7
Create a notification for this product.
Show details on NVD website

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CVE-2026-54089 (GCVE-0-2026-54089)

Vulnerability from cvelistv5 – Published: 2026-06-25 17:46 – Updated: 2026-06-25 18:33
VLAI
Title
File Browser: Authentication Bypass via Proxy Auth Header Forgery
Summary
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Starting with 2.0.0-rc.1, when FileBrowser is configured with proxy authentication (auth.method=proxy), any unauthenticated attacker who can reach the server directly can impersonate any user - including admin - by sending a single forged HTTP header. No credentials are required. Additionally, specifying a non-existent username causes the server to automatically create a new user account, providing an account creation primitive with no authorization. This is an already known issue that has been documented in the documentation for several years, but has not been documented as a vulnerability before.
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-25 18:33 UTC
CWE
  • CWE-287 - Improper Authentication
  • CWE-290 - Authentication Bypass by Spoofing
Impacted products
Vendor Product Version
filebrowser filebrowser Affected: >= 2.0.0-rc.1
Create a notification for this product.
Show details on NVD website

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CVE-2026-53857 (GCVE-0-2026-53857)

Vulnerability from cvelistv5 – Published: 2026-06-16 18:05 – Updated: 2026-06-18 03:55 X_Open Source
VLAI
Title
OpenClaw < 2026.5.3 - Mutable Display Name Binding in Zalo allowFrom Policy
Summary
OpenClaw before 2026.5.3 contains a policy enforcement vulnerability where Zalo contacts with mutable display metadata could match allowFrom policy entries through display name changes. Attackers with mutable display names could receive agent responses intended for different Zalo identities when the feature is enabled.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-17 00:00 UTC
CWE
  • CWE-290 - Authentication Bypass by Spoofing
References
Impacted products
Vendor Product Version
OpenClaw OpenClaw Affected: 0 , < 2026.5.3 (semver)
Unaffected: 2026.5.3 (semver)
    cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Create a notification for this product.
Date Public
2026-05-28 00:00
Show details on NVD website

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CVE-2026-53849 (GCVE-0-2026-53849)

Vulnerability from cvelistv5 – Published: 2026-06-16 18:04 – Updated: 2026-06-18 03:55 X_Open Source
VLAI
Title
OpenClaw < 2026.5.7 - Privilege Escalation via Mutable Discord Display Names in allowFrom
Summary
OpenClaw before 2026.5.7 contains a privilege escalation vulnerability where the allowFrom feature improperly validates Discord account identity using mutable display names instead of immutable user IDs. Attackers with Discord accounts can change their display name to match a policy entry and gain unauthorized agent access intended for another Discord identity.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-17 00:00 UTC
CWE
  • CWE-290 - Authentication Bypass by Spoofing
References
Impacted products
Vendor Product Version
OpenClaw OpenClaw Affected: 0 , < 2026.5.7 (semver)
Unaffected: 2026.5.7 (semver)
    cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Create a notification for this product.
Date Public
2026-05-28 00:00
Show details on NVD website

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CVE-2026-53833 (GCVE-0-2026-53833)

Vulnerability from cvelistv5 – Published: 2026-06-12 21:56 – Updated: 2026-07-14 21:33 X_Open Source
VLAI
Title
QQBot for OpenClaw < 2026.4.29 - Authorization Bypass via QQBot Streaming Command
Summary
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SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-15 18:17 UTC
CWE
  • CWE-290 - Authentication Bypass by Spoofing
References
Impacted products
Vendor Product Version
OpenClaw OpenClaw Affected: 0 , < 2026.4.29 (semver)
Unaffected: 2026.4.29 (semver)
    cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Create a notification for this product.
Date Public
2026-05-28 00:00
Show details on NVD website

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CVE-2026-53832 (GCVE-0-2026-53832)

Vulnerability from cvelistv5 – Published: 2026-06-12 21:56 – Updated: 2026-06-15 21:40 X_Open Source
VLAI
Title
OpenClaw < 2026.5.18 - Identity Header Forgery via Trusted-Proxy Configuration
Summary
OpenClaw before 2026.5.18 contains an identity header validation vulnerability allowing local same-host callers to forge trusted-proxy identity headers. Attackers with access to the proxy-facing Gateway port can supply forged identity headers to assume operator identity and potentially escalate privileges.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-15 21:38 UTC
CWE
  • CWE-290 - Authentication Bypass by Spoofing
References
Impacted products
Vendor Product Version
OpenClaw OpenClaw Affected: 0 , < 2026.5.18 (semver)
Unaffected: 2026.5.18 (semver)
    cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Create a notification for this product.
Date Public
2026-05-28 00:00
Show details on NVD website

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CVE-2026-53823 (GCVE-0-2026-53823)

Vulnerability from cvelistv5 – Published: 2026-06-12 21:56 – Updated: 2026-06-15 19:26 X_Open Source
VLAI
Title
OpenClaw < 2026.5.3 - Privilege Escalation via Mutable Slack Display Names in allowFrom
Summary
OpenClaw before 2026.5.3 contains a privilege escalation vulnerability in the allowFrom feature that binds to mutable Slack display names. Attackers with Slack account access can change display name metadata to match policy entries, potentially gaining unauthorized agent access intended for other identities.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-15 16:57 UTC
CWE
  • CWE-290 - Authentication Bypass by Spoofing
References
Impacted products
Vendor Product Version
OpenClaw OpenClaw Affected: 0 , < 2026.5.3 (semver)
Unaffected: 2026.5.3 (semver)
    cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Create a notification for this product.
Date Public
2026-05-28 00:00
Show details on NVD website

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CVE-2026-53817 (GCVE-0-2026-53817)

Vulnerability from cvelistv5 – Published: 2026-06-11 20:09 – Updated: 2026-06-23 16:16 X_Open Source
VLAI
Title
OpenClaw < 2026.5.22 - Control UI Locality Spoofing in Device Pairing
Summary
OpenClaw before 2026.5.22 contains a locality validation vulnerability in Control UI pairing that allows attackers with network access to spoof locality information and obtain durable admin-capable device tokens. Attackers can exploit insufficient locality-derived trust validation to convert temporary shared access into persistent administrative credentials that survive token rotation.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-12 00:00 UTC
CWE
  • CWE-290 - Authentication Bypass by Spoofing
References
Impacted products
Vendor Product Version
OpenClaw OpenClaw Affected: 0 , < 2026.5.22 (semver)
Unaffected: 2026.5.22 (semver)
    cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Create a notification for this product.
Date Public
2026-05-28 00:00
Credits
Show details on NVD website

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CVE-2026-53811 (GCVE-0-2026-53811)

Vulnerability from cvelistv5 – Published: 2026-06-11 20:07 – Updated: 2026-06-23 16:16 X_Open Source
VLAI
Title
OpenClaw < 2026.5.7 - Privilege Escalation via Mutable Display Names in Matrix allowFrom
Summary
OpenClaw before 2026.5.7 contains a privilege escalation vulnerability in the Matrix allowFrom feature that allows authenticated accounts to match policy entries through mutable display name metadata. Attackers with the ability to change display names can receive agent access intended for another Matrix identity, potentially gaining unauthorized permissions depending on operator configuration.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-13 03:55 UTC
CWE
  • CWE-290 - Authentication Bypass by Spoofing
References
Impacted products
Vendor Product Version
OpenClaw OpenClaw Affected: 0 , < 2026.5.7 (semver)
Unaffected: 2026.5.7 (semver)
    cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Create a notification for this product.
Date Public
2026-05-28 00:00
Show details on NVD website

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CVE-2026-53791 (GCVE-0-2026-53791)

Vulnerability from cvelistv5 – Published: 2026-08-13 14:38 – Updated: 2026-08-14 18:09
VLAI
Title
rsync < 3.5.0 Daemon IP Spoofing via PROXY Protocol Header
Summary
rsync daemon before 3.5.0 contains an IP address spoofing vulnerability that allows unauthenticated remote attackers to bypass IP-based access controls by sending a crafted PROXY protocol header with a forged source address. Attackers who can connect directly to the rsync daemon can inject a spoofed source IP in the PROXY protocol header to circumvent hosts allow/deny rules, gaining unauthorized access that would otherwise be blocked based on their real source address.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 18:02 UTC
CWE
  • CWE-290 - Authentication Bypass by Spoofing
Impacted products
Vendor Product Version
RsyncProject rsync Affected: 0 , ≤ 3.4.4 (semver)
Unaffected: 3.5.0 (semver)
    cpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-12 00:00
Show details on NVD website

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No mitigation information available for this CWE.

CAPEC-21: Exploitation of Trusted Identifiers

An adversary guesses, obtains, or "rides" a trusted identifier (e.g. session ID, resource ID, cookie, etc.) to perform authorized actions under the guise of an authenticated user or service.

CAPEC-22: Exploiting Trust in Client

An attack of this type exploits vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by communicating directly with the server where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.

CAPEC-459: Creating a Rogue Certification Authority Certificate

An adversary exploits a weakness resulting from using a hashing algorithm with weak collision resistance to generate certificate signing requests (CSR) that contain collision blocks in their "to be signed" parts. The adversary submits one CSR to be signed by a trusted certificate authority then uses the signed blob to make a second certificate appear signed by said certificate authority. Due to the hash collision, both certificates, though different, hash to the same value and so the signed blob works just as well in the second certificate. The net effect is that the adversary's second X.509 certificate, which the Certification Authority has never seen, is now signed and validated by that Certification Authority.

CAPEC-461: Web Services API Signature Forgery Leveraging Hash Function Extension Weakness

An adversary utilizes a hash function extension/padding weakness, to modify the parameters passed to the web service requesting authentication by generating their own call in order to generate a legitimate signature hash (as described in the notes), without knowledge of the secret token sometimes provided by the web service.

CAPEC-473: Signature Spoof

An attacker generates a message or datablock that causes the recipient to believe that the message or datablock was generated and cryptographically signed by an authoritative or reputable source, misleading a victim or victim operating system into performing malicious actions.

CAPEC-476: Signature Spoofing by Misrepresentation

An attacker exploits a weakness in the parsing or display code of the recipient software to generate a data blob containing a supposedly valid signature, but the signer's identity is falsely represented, which can lead to the attacker manipulating the recipient software or its victim user to perform compromising actions.

CAPEC-59: Session Credential Falsification through Prediction

This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

CAPEC-60: Reusing Session IDs (aka Session Replay)

This attack targets the reuse of valid session ID to spoof the target system in order to gain privileges. The attacker tries to reuse a stolen session ID used previously during a transaction to perform spoofing and session hijacking. Another name for this type of attack is Session Replay.

CAPEC-667: Bluetooth Impersonation AttackS (BIAS)

An adversary disguises the MAC address of their Bluetooth enabled device to one for which there exists an active and trusted connection and authenticates successfully. The adversary can then perform malicious actions on the target Bluetooth device depending on the target’s capabilities.

CAPEC-94: Adversary in the Middle (AiTM)

An adversary targets the communication between two components (typically client and server), in order to alter or obtain data from transactions. A general approach entails the adversary placing themself within the communication channel between the two components.