EUVD-2026-39493

AES-GCM encryption/decryption with extremely large cumulative single message sizes 64 GiB were not properly rejected by the streaming APIs, allowing counter wrap, keystream reuse, and consequent plaintext recovery...

CVE-2026-55967

CVE-2026-55967 covers AES-GCM streaming APIs that fail to reject extremely large cumulative single messages (>64 GiB), allowing counter wrap and keystream reuse and enabling plaintext recovery. Public documents reference the same issue across multiple OS advisories (Ubuntu, Debian, Debian-deri...

GHSA-PJ6F-RC94-GW53 Mattermost Fails to Sanitize File Names

Mattermost versions 10.8.x = 10.8.3, 10.5.x = 10.5.8, 10.10.x = 10.10.0, 10.9.x = 10.9.3 fail to sanitize file names which allows users with file upload permission to overwrite file attachment thumbnails via path traversal in file streaming APIs...