Skip to main content

CWE-311

Missing Encryption of Sensitive Data

236 CVEs Avg CVSS 6.7 MITRE
15
CRITICAL
101
HIGH
106
MEDIUM
14
LOW
43
POC
1
KEV

Monthly

CVE-2026-81688 Aug 27, 14:50 PyPI HIGH PATCH This Week

openssl_encrypt by jahlives (versions before 1.4.9) embeds an unkeyed SHA-256 digest of each plaintext document into the encrypted file's cleartext header, creating a passive plaintext-confirmation oracle. Any party who possesses an encrypted file - including unauthorized recipients of intercepted or leaked archives - can extract this hash without the encryption password and use it to verify guessed or known plaintexts via offline dictionary attacks. Additionally, because the hash is unkeyed and deterministic, identical source documents encrypted separately under different passwords produce matching header hashes, enabling cross-file correlation and fingerprinting that undermines the confidentiality guarantees users expect from file encryption. No public exploit code has been identified at time of analysis, and this vulnerability does not appear in CISA KEV.

Information Disclosure Openssl Encrypt Jahlives
NVD GitHub
CVSS 4.0
8.7
EPSS
0.2%
CVE-2026-81681 Aug 27, 14:50 PyPI CRITICAL PATCH Act Now

Sensitive-file exposure in the openssl-encrypt pip package (openssl_encrypt) at versions <= 1.4.8 stems from its 'Encrypted USB Workspace' feature writing a marker that falsely declares the workspace AES-256-GCM encrypted while the derived key is never applied and the directory remains in cleartext. Users who trust the branding and store files in the workspace leave them fully readable on the removable media, so anyone with physical possession of the USB device can recover the data. No public exploit identified at time of analysis and the flaw is not in CISA KEV, but the failure silently defeats the product's core security promise.

Information Disclosure OpenSSL Hashicorp Openssl Encrypt Jahlives
NVD GitHub
CVSS 4.0
9.3
EPSS
0.1%
CVE-2026-77812 Aug 21, 14:06 CRITICAL Act Now

Cleartext exposure of Wi-Fi credentials in DJI consumer and prosumer drones lets an attacker within Bluetooth range recover the drone's Wi-Fi SSID, PSK, and trusted-client UUID by passively sniffing unencrypted DUML-over-BLE messages exchanged during a normal DJI Fly connection or QuickTransfer handoff. This affects a broad range of current DJI models (Neo, Flip, Air 3/3S, Avata 2/360, Mavic 3 family, Mavic 4 Pro, and Mini 2 through Mini 5 Pro) below specific firmware versions. Recovered credentials grant the attacker access to the drone's internal Wi-Fi network and the ability to decrypt the operator's Wi-Fi traffic; no public exploit identified at time of analysis, and it is not listed in CISA KEV.

Information Disclosure Dji Neo Dji Neo 2 Dji Flip Dji Air 3 +13
NVD VulDB
CVSS 4.0
9.4
EPSS
0.1%
CVE-2026-21079 Aug 10, 07:43 HIGH This Week

Unencrypted data transmission in Samsung Smart Switch prior to version 3.7.72.6 exposes sensitive personal data to interception by adjacent network attackers. An attacker positioned on the same network segment can passively capture data flowing between devices during an active Smart Switch wireless transfer session. No public exploit has been identified and no CISA KEV listing exists, but the adjacent-network vector and low attack complexity make this a realistic threat on shared or untrusted Wi-Fi networks.

Information Disclosure Smart Switch Samsung Mobile
NVD VulDB
CVSS 4.0
7.0
EPSS
0.1%
CVE-2026-20157 Jul 15, 16:18 CRITICAL Act Now

Missing-encryption weaknesses in Cisco RoomOS software (the OS for Cisco Webex/Room collaboration endpoints) were fixed in an internal-hardening release covering multiple internally discovered issues grouped under CWE-311. Because sensitive data or communications are not adequately encrypted, network-positioned attackers could intercept or expose information handled by affected devices. There is no public exploit identified at time of analysis and this CVE is not in CISA KEV; EPSS is negligible at 0.06% (0th percentile), consistent with SSVC 'Exploitation: none.' Note the published CVSS 9.8 (C:H/I:H/A:H) sits uneasily against a CWE-311/Information-Disclosure classification, which normally implies a confidentiality-centric impact.

Information Disclosure Cisco Cisco Roomos Software
NVD VulDB
CVSS 3.1
9.8
EPSS
0.1%
CVE-2026-54784 Jun 19, 20:47 NuGet HIGH PATCH GHSA This Week

Authenticated principal impersonation in CoreWCF (versions >=1.9.0, <1.9.1) occurs because the SPNEGO SecurityContextToken proof key returned in the RequestSecurityTokenResponse (RSTR) is wrapped without confidentiality protection, allowing any on-path observer to recover it. An attacker who captures the unprotected handshake can impersonate the authenticated Windows principal for the SCT lifetime (~10 hours) and decrypt or forge subsequent WS-SecureConversation traffic. No public exploit identified at time of analysis, but the vendor-confirmed advisory (GHSA-2288-8h3r-cqgg) and CVSS 7.4 indicate a meaningful confidentiality/integrity exposure for affected .NET WCF replacement deployments.

Information Disclosure Microsoft
NVD GitHub
CVSS 3.1
7.4
EPSS
0.2%
CVE-2026-34486 Apr 09, 19:35 Maven HIGH POC KEV PATCH THREAT GHSA Act Now

Missing encryption of cluster replication traffic in Apache Tomcat 11.0.20, 10.1.53, and 9.0.116 exposes sensitive session data to network-positioned attackers because the EncryptInterceptor - the clustering security control - can be bypassed due to a regression introduced by the fix for CVE-2026-29146. Listed in CISA KEV as actively exploited with a publicly available exploit, though EPSS sits at just 0.01% (1st percentile), indicating targeted rather than widespread automated exploitation. The confidentiality impact is rated High with no integrity or availability impact, consistent with CWE-311 (Missing Encryption of Sensitive Data).

Apache Information Disclosure Tomcat Apache Tomcat Apache Software Foundation
NVD VulDB HeroDevs
CVSS 3.1
7.5
EPSS
0.0%
Threat
4.5
CVE-2026-34992 Apr 03, 04:02 Go HIGH PATCH GHSA This Week

IPv6 Pod traffic in Antrea dual-stack Kubernetes clusters transmits in plaintext despite IPsec encryption configuration, exposing inter-node communication to network eavesdropping. Affects Antrea versions prior to 2.6.0, 2.5.2, and 2.4.5 when dual-stack networking is enabled with trafficEncryptionMode: ipsec. Vendor-released patches are available across multiple stable branches. No public exploit identified at time of analysis, though the vulnerability bypasses intended encryption controls and could enable passive network monitoring in multi-tenant or untrusted network environments.

Authentication Bypass Suse
NVD GitHub
CVSS 4.0
7.1
EPSS
0.0%
CVE-2026-28678 Mar 07, 16:15 HIGH PATCH This Week

DSA Study Hub stores JWT authentication tokens in unencrypted HTTP cookies, allowing attackers to extract and replay user credentials to gain unauthorized access to accounts. An unauthenticated remote attacker can intercept these tokens through network traffic analysis or client-side inspection to impersonate legitimate users. A patch is available in commit d527fba and should be applied immediately.

Information Disclosure Dsa Study Hub
NVD GitHub VulDB
CVSS 3.1
8.1
EPSS
0.0%
CVE-2026-84676 Sep 02, 15:40 MEDIUM This Month

Plaintext token storage in Jenkins Parameterized Remote Trigger Plugin 3.2.2 and earlier exposes authentication tokens to any Jenkins user holding Item/Extended Read permission or to anyone with direct access to the Jenkins controller filesystem. Tokens written to job config.xml files are readable without decryption, potentially allowing lower-privileged users to impersonate legitimate remote-trigger callers and invoke builds on downstream Jenkins instances. No public exploit has been identified; SSVC assessment confirms no active exploitation and a non-automatable attack path.

Information Disclosure Jenkins Jenkins Parameterized Remote Trigger Plugin Jenkins Project
NVD VulDB
CVSS 3.1
4.3
EPSS
0.1%
EPSS 0% CVSS 8.7
HIGH PATCH This Week

openssl_encrypt by jahlives (versions before 1.4.9) embeds an unkeyed SHA-256 digest of each plaintext document into the encrypted file's cleartext header, creating a passive plaintext-confirmation oracle. Any party who possesses an encrypted file - including unauthorized recipients of intercepted or leaked archives - can extract this hash without the encryption password and use it to verify guessed or known plaintexts via offline dictionary attacks. Additionally, because the hash is unkeyed and deterministic, identical source documents encrypted separately under different passwords produce matching header hashes, enabling cross-file correlation and fingerprinting that undermines the confidentiality guarantees users expect from file encryption. No public exploit code has been identified at time of analysis, and this vulnerability does not appear in CISA KEV.

Information Disclosure Openssl Encrypt Jahlives
NVD GitHub
EPSS 0% CVSS 9.3
CRITICAL PATCH Act Now

Sensitive-file exposure in the openssl-encrypt pip package (openssl_encrypt) at versions <= 1.4.8 stems from its 'Encrypted USB Workspace' feature writing a marker that falsely declares the workspace AES-256-GCM encrypted while the derived key is never applied and the directory remains in cleartext. Users who trust the branding and store files in the workspace leave them fully readable on the removable media, so anyone with physical possession of the USB device can recover the data. No public exploit identified at time of analysis and the flaw is not in CISA KEV, but the failure silently defeats the product's core security promise.

Information Disclosure OpenSSL Hashicorp +2
NVD GitHub
EPSS 0% CVSS 9.4
CRITICAL Act Now

Cleartext exposure of Wi-Fi credentials in DJI consumer and prosumer drones lets an attacker within Bluetooth range recover the drone's Wi-Fi SSID, PSK, and trusted-client UUID by passively sniffing unencrypted DUML-over-BLE messages exchanged during a normal DJI Fly connection or QuickTransfer handoff. This affects a broad range of current DJI models (Neo, Flip, Air 3/3S, Avata 2/360, Mavic 3 family, Mavic 4 Pro, and Mini 2 through Mini 5 Pro) below specific firmware versions. Recovered credentials grant the attacker access to the drone's internal Wi-Fi network and the ability to decrypt the operator's Wi-Fi traffic; no public exploit identified at time of analysis, and it is not listed in CISA KEV.

Information Disclosure Dji Neo Dji Neo 2 +15
NVD VulDB
EPSS 0% CVSS 7.0
HIGH This Week

Unencrypted data transmission in Samsung Smart Switch prior to version 3.7.72.6 exposes sensitive personal data to interception by adjacent network attackers. An attacker positioned on the same network segment can passively capture data flowing between devices during an active Smart Switch wireless transfer session. No public exploit has been identified and no CISA KEV listing exists, but the adjacent-network vector and low attack complexity make this a realistic threat on shared or untrusted Wi-Fi networks.

Information Disclosure Smart Switch Samsung Mobile
NVD VulDB
EPSS 0% CVSS 9.8
CRITICAL Act Now

Missing-encryption weaknesses in Cisco RoomOS software (the OS for Cisco Webex/Room collaboration endpoints) were fixed in an internal-hardening release covering multiple internally discovered issues grouped under CWE-311. Because sensitive data or communications are not adequately encrypted, network-positioned attackers could intercept or expose information handled by affected devices. There is no public exploit identified at time of analysis and this CVE is not in CISA KEV; EPSS is negligible at 0.06% (0th percentile), consistent with SSVC 'Exploitation: none.' Note the published CVSS 9.8 (C:H/I:H/A:H) sits uneasily against a CWE-311/Information-Disclosure classification, which normally implies a confidentiality-centric impact.

Information Disclosure Cisco Cisco Roomos Software
NVD VulDB
EPSS 0% CVSS 7.4
HIGH PATCH This Week

Authenticated principal impersonation in CoreWCF (versions >=1.9.0, <1.9.1) occurs because the SPNEGO SecurityContextToken proof key returned in the RequestSecurityTokenResponse (RSTR) is wrapped without confidentiality protection, allowing any on-path observer to recover it. An attacker who captures the unprotected handshake can impersonate the authenticated Windows principal for the SCT lifetime (~10 hours) and decrypt or forge subsequent WS-SecureConversation traffic. No public exploit identified at time of analysis, but the vendor-confirmed advisory (GHSA-2288-8h3r-cqgg) and CVSS 7.4 indicate a meaningful confidentiality/integrity exposure for affected .NET WCF replacement deployments.

Information Disclosure Microsoft
NVD GitHub
EPSS 0% 4.5 CVSS 7.5
HIGH POC KEV PATCH THREAT Act Now

Missing encryption of cluster replication traffic in Apache Tomcat 11.0.20, 10.1.53, and 9.0.116 exposes sensitive session data to network-positioned attackers because the EncryptInterceptor - the clustering security control - can be bypassed due to a regression introduced by the fix for CVE-2026-29146. Listed in CISA KEV as actively exploited with a publicly available exploit, though EPSS sits at just 0.01% (1st percentile), indicating targeted rather than widespread automated exploitation. The confidentiality impact is rated High with no integrity or availability impact, consistent with CWE-311 (Missing Encryption of Sensitive Data).

Apache Information Disclosure Tomcat +2
NVD VulDB HeroDevs
EPSS 0% CVSS 7.1
HIGH PATCH This Week

IPv6 Pod traffic in Antrea dual-stack Kubernetes clusters transmits in plaintext despite IPsec encryption configuration, exposing inter-node communication to network eavesdropping. Affects Antrea versions prior to 2.6.0, 2.5.2, and 2.4.5 when dual-stack networking is enabled with trafficEncryptionMode: ipsec. Vendor-released patches are available across multiple stable branches. No public exploit identified at time of analysis, though the vulnerability bypasses intended encryption controls and could enable passive network monitoring in multi-tenant or untrusted network environments.

Authentication Bypass Suse
NVD GitHub
EPSS 0% CVSS 8.1
HIGH PATCH This Week

DSA Study Hub stores JWT authentication tokens in unencrypted HTTP cookies, allowing attackers to extract and replay user credentials to gain unauthorized access to accounts. An unauthenticated remote attacker can intercept these tokens through network traffic analysis or client-side inspection to impersonate legitimate users. A patch is available in commit d527fba and should be applied immediately.

Information Disclosure Dsa Study Hub
NVD GitHub VulDB
EPSS 0% CVSS 4.3
MEDIUM This Month

Plaintext token storage in Jenkins Parameterized Remote Trigger Plugin 3.2.2 and earlier exposes authentication tokens to any Jenkins user holding Item/Extended Read permission or to anyone with direct access to the Jenkins controller filesystem. Tokens written to job config.xml files are readable without decryption, potentially allowing lower-privileged users to impersonate legitimate remote-trigger callers and invoke builds on downstream Jenkins instances. No public exploit has been identified; SSVC assessment confirms no active exploitation and a non-automatable attack path.

Information Disclosure Jenkins Jenkins Parameterized Remote Trigger Plugin +1
NVD VulDB

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy