Weakness (CWE)
CWE-319: Cleartext Transmission of Sensitive Information
The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.
How to prevent it (5 mitigations)
-
Architecture and Design
Before transmitting, encrypt the data using reliable, confidentiality-protecting cryptographic protocols.
-
Implementation
When using web applications with SSL, use SSL for the entire session from login to logout, not just for the initial login page.
-
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.
-
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.
-
Operation
Configure servers to use encrypted channels for communication, which may include SSL or other secure protocols.
Source: MITRE CWE-319
651 results · Feed
-
High 8.1
Insecure XFT Transport in Progress WS_FTP Server
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.
-
Medium 6.8
Vikunja veans before 2.7.1 HTTPS to HTTP Downgrade in Server Discovery
Vikunja veans before 2.7.1 contains a protocol downgrade vulnerability in serverCandidates that allows on-path attackers to force plain HTTP during veans init and login. Attackers can block HTTPS ports so discovery accepts an unverified HTTP response, capturi…
-
Low 3.5
VitaFit Android < 2.8.1.0 Cleartext Traffic via Missing Network Security Config
VitaFit Android application (com.vt.vitafit) before 2.8.1.0 contains a cleartext traffic vulnerability that allows network-based attackers to intercept or modify unencrypted HTTP communications due to the absence of an Android network security configuration. …
-
Medium 6.5
Cleartext transmission of sensitive information in the email configuration test in Devolutions Server 2026.3.13.0 and e…
-
Low 3.7
LibreSSL ocspcheck through 4.4.0 Cleartext Transmission of OCSP Requests via url2host()
LibreSSL ocspcheck through 4.4.0 contains a cleartext transmission vulnerability because url2host() discards the OCSP URL scheme and http_alloc() only selects TLS for port 443. On-path network attackers can read OCSP requests sent to https responder URLs on n…
-
Medium 5.7
Mobile VPN with SSL Client for Windows: Cleartext Transmission of VPN Credentials over Local Management Socket
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.
-
Medium 4.8
Fclairamb ftpserverlib through 0.32.4 Cleartext FTPES Data Transfer via PROT P
Fclairamb ftpserverlib through 0.32.4 contains a cleartext transmission vulnerability because TransferOpen checks only the transferTLS flag set by PROT, not whether the prepared data connection uses TLS. When a client sends PROT P after PASV or PORT, file con…
-
Medium 6.5
Unauthorized Access to vSolution Matrix RTSP
When the vSolution Matrix feature is enabled, affected devices may make current screen content available through an unauthenticated RTSP/RTP stream to hosts on the same network segment. The stream is not encrypted, which may allow an unauthenticated host to v…
-
Low 3.7
Yoosee GM8135S Camera Live UDP H.264 Video Stream npc cleartext transmission
A weakness has been identified in Yoosee GM8135S Camera 21.00.01.36. This affects an unknown function of the file /npc/npc of the component Live UDP H.264 Video Stream Handler. This manipulation causes cleartext transmission of sensitive information. The atta…
-
Low 3.7CVE-2026-116105 Public exploit
HeyCyan App Network Security Configuration AndroidManifest.xml cleartext transmission
A weakness has been identified in HeyCyan App 1.0.103 on Android. Affected is an unknown function of the file AndroidManifest.xml of the component Network Security Configuration. Executing a manipulation can lead to cleartext transmission of sensitive informa…
-
Medium 5.9
Snipe-IT before 8.6.3 LDAP StartTLS Downgrade via connectToLdap()
Snipe-IT before 8.6.3 ignores the ldap_start_tls() return value in Ldap::connectToLdap(), allowing on-path attackers to force cleartext LDAP binds. Attackers can answer the StartTLS request with a protocol error to capture service-account credentials and end-…
-
Medium 5.3
Rclone before v1.75.2 B2 Credential Leak on Redirect via --b2-download-url
Rclone before v1.75.2 contains a credential exposure vulnerability in the b2 backend that leaks the live account Authorization token and SSE-C keys on HTTP redirects from --b2-download-url hosts. Attackers can observe a same-host HTTPS-to-HTTP downgrade redir…
-
Medium 6.8
SiYuan 3.6.0 before 3.8.7 Cleartext Transmission via Unenforced networkServeTLS Setting
SiYuan 3.6.0 before 3.8.7 accepts and persists the networkServeTLS setting but never enforces it, so the kernel port keeps serving full API access over plain HTTP alongside HTTPS. Network-adjacent attackers can sniff the cleartext login flow and session cooki…
-
Low 3.7
Tenda F6 Web Management cleartext transmission
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 …
-
High 8.1
InterSystems Corporation InterSystems IRIS for Health Cleartext Transmission of Sensitive Information
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.
-
Low 2.6
Authlib: is_secure_transport() loopback exemption can be bypassed with a userinfo component, allowing cleartext-HTTP URLs to non-loopback hosts
Authlib is a Python library which builds OAuth and OpenID Connect servers. From 0.13 until 1.8.0, authlib.common.security.is_secure_transport() uses a textual prefix comparison for loopback HTTP exemptions, so a URL whose userinfo begins with a loopback host …
-
Low 2.2
Multiple security vulnerabilities affect HCL AppScan Azure Boards Plugin (CVE-2026-12143 and CVE-2026-13149)
HCL AppScan Azure Boards Plugin is affected by a Cleartext Transmission of Sensitive Information vulnerability when configured to communicate with the AppScan server over HTTP. This could allow an attacker to intercept credentials or authentication tokens dur…
-
Medium 5.3
Girafit Camera App 1.9.1 Hardcoded TURN Credentials Disclosure
Girafit camera app (Android and iOS) version 1.9.1 and earlier, and Girafit camera devices, contain a hardcoded credentials vulnerability that allows attackers to obtain the shared TURN relay username by decompiling the app or intercepting unencrypted network…
-
Medium 4.8CVE-2026-107692 Public exploit
War Thunder Account Impersonation
The War Thunder game client transmits its authentication bearer token (auth_jwt) in the very first data packet after the TCP handshake, using only LZ4 compression rather than encryption. An attacker positioned on the network path can passively intercept and d…
-
High 7.5
Cleartext Transmission of Sensitive Information in ADP Desktop SDK
ADP Desktop SDK contains a vulnerability where sensitive information is transmitted in clear text. Exploitation of this vulnerability can lead to unauthorized access to Autodesk services.
-
Medium 5.1
IBM Aspera Enterprise Webapps Information Disclosure
IBM Aspera Enterprise WebApps 1.0.0 through 1.0.6 could allow a local attacker to obtain sensitive information due to cleartext transmission of sensitive information.
-
High 7.5
Cleartext transmission in Progress MarkLogic Server Amazon S3 connections
Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7 may use cleartext transport for Amazon S3 connections by default. A network-positioned attacker could intercept data or credentials transmitted through an affected connectio…
-
High 7.4
Cleartext transmission in Progress MarkLogic Server cluster join operations
Progress MarkLogic Server 12.x releases before 12.1.0 may use cleartext transport for certain cluster-management communications. A network-positioned attacker could intercept or modify information transmitted through an affected connection.
-
Medium 5.3
mcp-remote 0.8.0 through 0.14.3 Cleartext Credential Transmission via --device-code OAuth Grant
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-loopba…
-
Medium 5.9
Mechanize sends credential headers to a different scheme or port after a redirect
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 r…
-
High 7.4
Cleartext Transmission of Sensitive Information in hMailServer
Progressive Robot hMailServer 6.0.0 through 6.3.5 does not enforce TLS for outbound SMTP delivery to a mail exchanger whose DNSSEC-validated TLSA records contain no DANE-EE (usage 3) record, contrary to RFC 7672 section 2.2. The server used only DANE-EE recor…
-
Medium 5.9
AsyncHttpClient: WebSocket proxy credentials sent to the origin server over a CONNECT tunnel
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 requ…
-
Critical 9.4
AsyncHttpClient: Replay to a different host sends the original host request and credentials to the new host
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 p…
-
High 7.5
AsyncHttpClient: Origin credentials sent in cleartext to a proxy that rejects the CONNECT
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 rat…
-
High 8.7
AsyncHttpClient: Digest challenge without a usable nonce downgrades to Basic and sends the password in cleartext
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 malic…
-
High 7.6
Docker Engine insecure-registry fallback via malicious DNS responses
Docker Engine classifies a registry hostname as insecure using an any-match DNS check. loadInsecureRegistries() injects 127.0.0.0/8 and ::1/128 as insecure CIDRs by default. isCIDRMatch resolves all of the hostname's addresses and returns true if a single add…
-
Medium 6.5
Keycloak-services: keycloak-services: smtp starttls plaintext credential and message downgrade
A flaw was found in the SMTP email configuration handling of the keycloak-services component. When the STARTTLS option is enabled, Keycloak fails to strictly enforce an encrypted connection, allowing it to fall back to unencrypted communication if the encrypt…
-
Low 3.1
Chainguard Academy (edu) Nginx directory redirect downgrades HTTPS requests to HTTP
Use of the backend-facing $scheme variable in the trailing-slash directory redirect in nginx.conf of Chainguard Academy (edu) from commit 0b75ff98057f69b044a3e7194e428066ac5ad0d4 before commit 93dc0e50739c225f5aee2e803800a47fc0feb906 allows an on-path network…
-
Low 3.7
sgl-project sglang HTTP Endpoint http_server.py server_info cleartext transmission
A vulnerability has been found in sgl-project sglang up to 0.5.21. This issue affects the function server_info of the file python/sglang/srt/entrypoints/http_server.py of the component HTTP Endpoint. Such manipulation of the argument api_key leads to cleartex…
-
High 7.5
GV-Eye Sensitive information exposure in URL query parameter Vulnerability
Transmission of a sensitive key in the URL over an unencrypted HTTP connection. The request is sent over HTTP rather than HTTPS, meaning the key is transmitted in plaintext across the network. An attacker with the ability to monitor network traffic could int…
-
High 7.3
- Cleartext Transmission of Sensitive Information vulnerability in Johnson Controls EasyIO NEO allows - Man In the Midd…
-
High 8.5
Unencrypted UDP Control Traffic in Teledyne FLIR Robots running Aware2
Cleartext transmission without a cryptographic integrity check in operator control unit to robot UDP traffic in Teledyne FLIR Aware2 versions through 6.9.0.2 (PackBot) and 1.7.9 (FirstLook) allows adjacent unauthenticated attackers to intercept, hijack, or mo…
-
Medium 5.3
Unencrypted 802.11 Network in Teledyne FLIR Robots running Aware2
Unencrypted traffic in the 802.11 network of Teledyne FLIR Aware2 versions through 6.9.0.2 allows adjacent unauthenticated attackers to intercept, hijack, or modify session traffic against Teledyne FLIR PackBot robots running this software via sniffing or hij…
-
Critical 9.4
Cleartext HTTP for Control Traffic in Teledyne FLIR Robots running Aware2
Cleartext transmission in the primary control endpoints of Teledyne FLIR Aware2 versions through 6.9.0.2 allows remote unauthenticated attackers to intercept, hijack, or modify session traffic against Teledyne FLIR PackBot robots running this software via sni…
-
Medium 4.3
Joyland AI enables HTTP
Joyland AI app explicitly permits cleartext HTTP traffic on Android 9+ where the default is to block it.