LOWCVSS v3.1 3.7Vulnerability

CVE-2026-128335

Contao 4.6.0 before 5.3.54, 5.4.0-RC1 before 5.7.17, and 6.0.0-RC1 before 6.0.6 fails to invalidate existing user sessions when two-factor authentication is enabled or disabled. Because Contao\User::isEqualTo() and serialized session data omit two-factor state, attackers already holding a session keep it after the owner changes 2FA settings.

Properties

Severity
LOW
Nvd fetched at
2026-11-14T00:40:25.638091+00:00
Epss score
0.00353
Cvss severity
LOW
Cvss score
3.7
Retrieved at
2026-11-14T00:51:03+00:00
Last source
FIRST EPSS
Score
3.7
Cvss version
3.1
Cve id
CVE-2026-128335
Cvss vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
First seen by Signal
2026-11-13T17:31:47+00:00
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
Published at
2026-11-13T10:18:13.567
Last modified
2026-11-13T17:17:27.833
Epss percentile
0.29362

Related Entities (1)

HAS_WEAKNESS (1)

Related research

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CVE-2026-128335 (CVSS v3.1 3.7) — Ninja Signal Threat Intelligence | Ninja Signal