CWE-394 vulnerabilities

Crux Agent from 1.9.0 before 2.0.3 uses the full SKA bilocation key as the WireGuard preshared key. When a peering session negotiates use of SHA-512, the key produced is 64 bytes instead of the 32 bytes WireGuard requires. The agent does not validate this size; instead it attempts to use the `wg set` command to update the live tunnel, and write the invalid key to the WireGuard configuration file. The update fails, so the live tunnel keeps using its previous preshared key until the tunnel is shut down. The tunnel will fail to start when restarted. For a peer which has never successfully negotiated a 32-byte bilocation key in a Crux C2 organization which has the "Enforce SKA Use" setting turned off, no preshared key will be set for the tunnel. Therefore, an attacker who is able to intercept and store the peer's traffic, and has access (or will have access) to a cryptographically relevant quantum computer, will be able to decrypt the tunnel.

CVE-2026-73064 is a vulnerability in Mbed TLS versions 3.2.0 through 3.6.6 and 4.0.0 through 4.1.0 affecting TLS 1.3 servers. An attacker who can cause an entropy source failure may remove or inject bytes at the start of the TLS stream. The CVSS score is 2.9, indicating a medium severity issue with limited impact on confidentiality and availability but potential integrity impact. No known exploits are reported in the wild. No patch or remediation information is provided in the source data.

CVE-2026-76956 is a vulnerability in libexpat versions 2.8.2 and 2.8.3 prior to 2.8.4 where the return code of the getentropy function is misinterpreted. This leads to insufficient entropy being used, making the software vulnerable to hash flooding attacks that can cause denial of service through crafted XML content.

A vulnerability exists in Copeland XWEB Pro version 1.12.1 and prior, in which an unexpected return value from the authentication routine is later on processed as a legitimate value, resulting in an authentication bypass.

Improper return value within AMD uProf can allow a local attacker to bypass KSLR, potentially resulting in loss of confidentiality or availability.

Lack of Graceful Error Handling - HTTP 5xx ErrorThis issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5 .

Systemic Internal Server Errors - HTTP 500 ResponseThis issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5 .

Improper handling of non-200 http responses in the PingFederate Google Adapter leads to thread exhaustion under normal usage conditions.