Token Content Access
Monthly
Observable timing discrepancy in the Drupal Token Content Access module exposes token-protected content to brute-force enumeration via side-channel analysis. All module versions from 0.0.0 through 3.1.2 are affected; unauthenticated remote attackers (PR:N, AV:N per CVSS) can measure differential response times during token validation to reconstruct valid access tokens character-by-character, ultimately bypassing content access restrictions. No active exploitation has been confirmed (SSVC exploitation: none, EPSS 0.14%, no KEV listing), and a vendor patch is available per Drupal SA-CONTRIB-2026-090.
Observable timing discrepancy in the Drupal Token Content Access module exposes token-protected content to brute-force enumeration via side-channel analysis. All module versions from 0.0.0 through 3.1.2 are affected; unauthenticated remote attackers (PR:N, AV:N per CVSS) can measure differential response times during token validation to reconstruct valid access tokens character-by-character, ultimately bypassing content access restrictions. No active exploitation has been confirmed (SSVC exploitation: none, EPSS 0.14%, no KEV listing), and a vendor patch is available per Drupal SA-CONTRIB-2026-090.