Common Weakness Enumeration

CWE-319

Allowed

Cleartext Transmission of Sensitive Information

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.

476 vulnerabilities reference this CWE, most recent first.

CVE-2026-115797 (GCVE-0-2026-115797)

Vulnerability from cvelistv5 – Published: 2026-10-23 20:00 – Updated: 2026-10-29 14:19
VLAI
Title
Tenda F6 Web Management cleartext transmission
Summary
A weakness has been identified in Tenda F6 12.02.01.73. Affected is an unknown function of the component Web Management Interface. Executing a manipulation of the argument ecos_pw can lead to cleartext transmission of sensitive information. The attack may be launched remotely. This attack is characterized by high complexity. The exploitability is told to be difficult. The exploit has been made available to the public and could be used for attacks.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
3.7 (Low)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 14:18 UTC
CWE
  • CWE-319 - Cleartext Transmission of Sensitive Information
  • CWE-310 - Cryptographic Issues
Assigner
VulDB CNA
References
Impacted products
Vendor Product Version
Tenda F6 Affected: 12.02.01.73
    cpe:2.3:h:tenda:f6:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Abdullah Altamimi Muhannad Alshalan Muhannad Almukhalfi WKZER (VulDB User) WKZER (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-115495 (GCVE-0-2026-115495)

Vulnerability from cvelistv5 – Published: 2026-10-27 15:55 – Updated: 2026-11-04 20:25
VLAI
Title
Mobile VPN with SSL Client for Windows: Cleartext Transmission of VPN Credentials over Local Management Socket
Summary
Cleartext Transmission of Sensitive Information vulnerability in the WatchGuard Mobile VPN with SSL client for Windows allows a local attacker who can capture loopback traffic to obtain the user’s VPN username and password.
Severity
5.7 (Medium)
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-04 18:42 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
WatchGuard Mobile VPN with SSL Client Affected: 12.0 , < 2026.4 (semver)
    cpe:2.3:a:watchguard:mobile_vpn_with_ssl_client:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-27 15:55
Credits
Discovered internally by WatchGuard
Show details on NVD website
To clipboard 

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CVE-2026-115338 (GCVE-0-2026-115338)

Vulnerability from cvelistv5 – Published: 2026-11-09 16:42 – Updated: 2026-11-09 16:42
VLAI
Title
Insecure XFT Transport in Progress WS_FTP Server
Summary
Insufficient protection of communications in Progress WS_FTP Server versions prior to 2025.0.5 could allow a network attacker to intercept sensitive information or modify requests when unencrypted connections are used.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-319 - Cleartext Transmission of Sensitive Information
  • CWE-345 - Insufficient Verification of Data Authenticity
Assigner
References
Impacted products
Vendor Product Version
Progress Software WS_FTP Server Affected: 0 , < 2025.0.5 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-111594 (GCVE-0-2026-111594)

Vulnerability from cvelistv5 – Published: 2026-10-22 21:39 – Updated: 2026-11-02 12:36
VLAI
Title
InterSystems Corporation InterSystems IRIS for Health Cleartext Transmission of Sensitive Information
Summary
InterSystems IRIS for Health has TLS/SSL encryption turned off by default, which may enable an attacker to view transmitted data and use that data to log into the device.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2 (Critical)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 12:34 UTC
CWE
Assigner
icscert CNA
References
Impacted products
Vendor Product Version
InterSystems IRIS for Health Affected: 2026.2.0.221
Affected: 2026.1.0.235
Affected: 2025.3.0.226
Create a notification for this product.
Credits
Abhinav Agarwal reported this vulnerability to CISA and InterSystems Corporation.
Show details on NVD website
To clipboard 

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CVE-2026-108716 (GCVE-0-2026-108716)

Vulnerability from cvelistv5 – Published: 2026-10-11 12:19 – Updated: 2026-10-13 17:01
VLAI
Title
mcp-remote 0.8.0 through 0.14.3 Cleartext Credential Transmission via --device-code OAuth Grant
Summary
mcp-remote 0.8.0 through 0.14.3 contains a cleartext transmission vulnerability in authorizeWithDeviceCode that sends client secrets and receives tokens without enforcing HTTPS endpoints. When discovered device authorization and token endpoints are non-loopback http URLs, on-path network attackers can capture the client secret plus issued access and refresh tokens.
Severity
6 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
5.3 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 15:49 UTC
CWE
  • CWE-319 - Cleartext Transmission of Sensitive Information
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
punkpeye mcp-remote Affected: 0.8.0 , ≤ 0.14.3 (semver)
Create a notification for this product.
Date Public
2026-10-10 00:00
Credits
HaiND from the Post and Telecommunication Institute of Technology
Show details on NVD website
To clipboard 

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CVE-2026-107714 (GCVE-0-2026-107714)

Vulnerability from cvelistv5 – Published: 2026-10-08 21:26 – Updated: 2026-10-09 15:06
VLAI
Title
Mechanize sends credential headers to a different scheme or port after a redirect
Summary
The Mechanize library is used for automating interaction with websites. Prior to 2.14.1, Mechanize::HTTP::Agent#response_redirect treats redirects as same-origin when the host matches without consistently comparing scheme and port. A same-host HTTPS-to-HTTP redirect can send Authorization and Cookie headers over cleartext, while a same-host redirect to another port can send a caller-supplied Cookie header to a different service. Cookies in Mechanize#cookie_jar remain scoped separately; the issue affects caller-supplied headers and can disclose credentials without affecting integrity or availability. This issue is fixed in version 2.14.1.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 15:06 UTC
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-319 - Cleartext Transmission of Sensitive Information
  • CWE-522 - Insufficiently Protected Credentials
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
sparklemotion mechanize Affected: < 2.15.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-107285 (GCVE-0-2026-107285)

Vulnerability from cvelistv5 – Published: 2026-10-07 21:28 – Updated: 2026-10-08 17:57
VLAI
Title
AsyncHttpClient: WebSocket proxy credentials sent to the origin server over a CONNECT tunnel
Summary
The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.12 and 2.16.1, a proxied ws request is carried through CONNECT, but NettyRequestFactory.newNettyRequest and requestUri decide whether to attach proxy authentication and an absolute-form target only from whether the URI is secure. Because ws is not marked secure, the tunneled WebSocket upgrade sent to the origin includes the proxy's Proxy-Authorization value. Basic credentials are directly recoverable and Digest responses can be replayed or cracked offline. This issue is fixed in versions 3.0.12 and 2.16.1.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 15:26 UTC
CWE
  • CWE-319 - Cleartext Transmission of Sensitive Information
  • CWE-522 - Insufficiently Protected Credentials
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
AsyncHttpClient async-http-client Affected: >= 3.0.0, <3.0.12
Affected: >= 2.0.0, < 2.16.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-107282 (GCVE-0-2026-107282)

Vulnerability from cvelistv5 – Published: 2026-10-07 21:21 – Updated: 2026-10-10 02:50
VLAI
Title
AsyncHttpClient: Replay to a different host sends the original host request and credentials to the new host
Summary
The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.13 and 2.16.1, cross-host request replay updates the current request but leaves the target request and related proxy context pointing at the original origin. Connection-pool selection, CONNECT handling, realm selection, and TLS setup can consequently send the original host's path, Host header, Authorization credentials, or plaintext request to the replay destination. Documented ResponseFilter failover and retry paths can trigger the replay. This issue is fixed in versions 3.0.13 and 2.16.1.
Severity
9.4 (Critical)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-10 02:49 UTC
CWE
  • CWE-319 - Cleartext Transmission of Sensitive Information
  • CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')
  • CWE-522 - Insufficiently Protected Credentials
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
AsyncHttpClient async-http-client Affected: >= 3.0.0, < 3.0.13
Affected: >= 2.0.0, < 2.16.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-107232 (GCVE-0-2026-107232)

Vulnerability from cvelistv5 – Published: 2026-10-07 21:09 – Updated: 2026-10-08 14:01
VLAI
Title
AsyncHttpClient: Origin credentials sent in cleartext to a proxy that rejects the CONNECT
Summary
The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.12 on 3.x and 2.16.1 on 2.x, the client infers that an HTTP proxy tunnel exists from the last request method rather than the CONNECT result. After a proxy rejects CONNECT, redirect or authentication handlers can write an origin request and its Authorization credentials onto the still-plaintext proxy connection. Basic credentials can be recovered directly, while NTLM responses may be cracked or relayed. This issue is fixed in versions 3.0.12 and 2.16.1.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 14:01 UTC
CWE
  • CWE-319 - Cleartext Transmission of Sensitive Information
  • CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')
  • CWE-522 - Insufficiently Protected Credentials
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
AsyncHttpClient async-http-client Affected: >= 3.0.0, < 3.0.12
Affected: >= 2.0.0, < 2.16.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-107231 (GCVE-0-2026-107231)

Vulnerability from cvelistv5 – Published: 2026-10-07 21:06 – Updated: 2026-10-10 02:48
VLAI
Title
AsyncHttpClient: Digest challenge without a usable nonce downgrades to Basic and sends the password in cleartext
Summary
The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.13 and 2.16.1, Realm.Builder treats a Digest challenge that yields no usable nonce as a Basic challenge. A malicious origin or proxy can label a challenge Digest while omitting or emptying the nonce, causing the client to resend the username and password using reversible Basic authentication. Both origin and proxy challenge parsers are affected. This issue is fixed in versions 3.0.13 and 2.16.1.
Severity
8.7 (High)
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
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-10 02:48 UTC
CWE
  • CWE-319 - Cleartext Transmission of Sensitive Information
  • CWE-522 - Insufficiently Protected Credentials
  • CWE-757 - Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
AsyncHttpClient async-http-client Affected: >= 3.0.0.Beta1, < 3.0.13
Affected: >= 2.0.0, < 2.16.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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          "name": "https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-rqf5-2wxv-rjf4",
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            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-rqf5-2wxv-rjf4"
        },
        {
          "name": "https://github.com/AsyncHttpClient/async-http-client/commit/8376866aa9b5a7653ad19db9d472692f875caa83",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/AsyncHttpClient/async-http-client/commit/8376866aa9b5a7653ad19db9d472692f875caa83"
        },
        {
          "name": "https://github.com/AsyncHttpClient/async-http-client/commit/c8d639bf6ac341d377d610a93570bcd15565f1a6",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/AsyncHttpClient/async-http-client/commit/c8d639bf6ac341d377d610a93570bcd15565f1a6"
        },
        {
          "name": "https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.16.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.16.1"
        },
        {
          "name": "https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.13",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.13"
        }
      ],
      "source": {
        "advisory": "GHSA-rqf5-2wxv-rjf4",
        "discovery": "UNKNOWN"
      },
      "title": "AsyncHttpClient: Digest challenge without a usable nonce downgrades to Basic and sends the password in cleartext"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-107231",
    "datePublished": "2026-10-07T21:06:26.742Z",
    "dateReserved": "2026-10-07T14:34:14.817Z",
    "dateUpdated": "2026-10-10T02:48:49.716Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}
Mitigation
Architecture and Design

Before transmitting, encrypt the data using reliable, confidentiality-protecting cryptographic protocols.

Mitigation
Implementation

When using web applications with SSL, use SSL for the entire session from login to logout, not just for the initial login page.

Mitigation
Implementation

When designing hardware platforms, ensure that approved encryption algorithms (such as those recommended by NIST) protect paths from security critical data to trusted user applications.

Mitigation
Testing

Use tools and techniques that require manual (human) analysis, such as penetration testing, threat modeling, and interactive tools that allow the tester to record and modify an active session. These may be more effective than strictly automated techniques. This is especially the case with weaknesses that are related to design and business rules.

Mitigation
Operation

Configure servers to use encrypted channels for communication, which may include SSL or other secure protocols.

CAPEC-102: Session Sidejacking

Session sidejacking takes advantage of an unencrypted communication channel between a victim and target system. The attacker sniffs traffic on a network looking for session tokens in unencrypted traffic. Once a session token is captured, the attacker performs malicious actions by using the stolen token with the targeted application to impersonate the victim. This attack is a specific method of session hijacking, which is exploiting a valid session token to gain unauthorized access to a target system or information. Other methods to perform a session hijacking are session fixation, cross-site scripting, or compromising a user or server machine and stealing the session token.

CAPEC-117: Interception

An adversary monitors data streams to or from the target for information gathering purposes. This attack may be undertaken to solely gather sensitive information or to support a further attack against the target. This attack pattern can involve sniffing network traffic as well as other types of data streams (e.g. radio). The adversary can attempt to initiate the establishment of a data stream or passively observe the communications as they unfold. In all variants of this attack, the adversary is not the intended recipient of the data stream. In contrast to other means of gathering information (e.g., targeting data leaks), the adversary must actively position themself so as to observe explicit data channels (e.g. network traffic) and read the content. However, this attack differs from a Adversary-In-the-Middle (CAPEC-94) attack, as the adversary does not alter the content of the communications nor forward data to the intended recipient.

CAPEC-383: Harvesting Information via API Event Monitoring

An adversary hosts an event within an application framework and then monitors the data exchanged during the course of the event for the purpose of harvesting any important data leaked during the transactions. One example could be harvesting lists of usernames or userIDs for the purpose of sending spam messages to those users. One example of this type of attack involves the adversary creating an event within the sub-application. Assume the adversary hosts a "virtual sale" of rare items. As other users enter the event, the attacker records via AiTM (CAPEC-94) proxy the user_ids and usernames of everyone who attends. The adversary would then be able to spam those users within the application using an automated script.

CAPEC-477: Signature Spoofing by Mixing Signed and Unsigned Content

An attacker exploits the underlying complexity of a data structure that allows for both signed and unsigned content, to cause unsigned data to be processed as though it were signed data.

CAPEC-65: Sniff Application Code

An adversary passively sniffs network communications and captures application code bound for an authorized client. Once obtained, they can use it as-is, or through reverse-engineering glean sensitive information or exploit the trust relationship between the client and server. Such code may belong to a dynamic update to the client, a patch being applied to a client component or any such interaction where the client is authorized to communicate with the server.

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