CVE-2026-35051
â criticalSummary
Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.43, 3.6.14, and 3.7.0-rc.2, there is an authentication bypass vulnerability in Traefik's ForwardAuth middleware when trustForwardHeader=false is configured and Traefik is deployed behind a trusted upstream proxy. This issue has been patched in versions 2.11.43, 3.6.14, and 3.7.0-rc.2.
CVSS Score
10.0
Critical
EPSS Score
0.0
Exploit Probability
Published Date
2026-04-30
First Seen: 2026-05-03
đ Relative Risk Intelligence
This CVE is Extremely High Risk - more severe than 100.0% of all 329,456 vulnerabilities in our database.
#1
Top 5% most severe
Severity Percentile
đ¯ CISA SSVC Assessment Updated: May 1, 2026
đ Exploitation Status
None
No known exploits
âī¸ Automatable
YES
Can be exploited automatically
đĨ Technical Impact
Total
Complete system compromise possible
SSVC data provided by
CISA
Last Modified
2026-05-01
Source
NVD đ
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
CVSS Vector 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE IDs (Weakness Types)