CVE-2026-40912

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.77% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 52.9% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-07-15.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-04-30 20:38Z4 MO AGO

Last updated

2026-07-15 01:00Z1 MO AGO

Reserved

2026-04-15

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

• CWE-706Use of Incorrectly-Resolved Name or ReferenceClass
• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base

Data version

5.2

Document digest

ecdc10f9603a5b65365934583ce7658276fab17267a0f3e8daeaaf8b007c3f99

• github.comhttps://github.com/traefik/traefik/security/advisories/GHSA-6jwx-7vp4-9847x_refsource_CONFIRM
• github.comhttps://github.com/traefik/traefik/releases/tag/v2.11.43x_refsource_MISC
• github.comhttps://github.com/traefik/traefik/releases/tag/v3.6.14x_refsource_MISC
• github.comhttps://github.com/traefik/traefik/releases/tag/v3.7.0-rc.2x_refsource_MISC
• access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-40912vdb-entryx_refsource_REDHAT
• bugzilla.redhat.comRHBZ#2464229https://bugzilla.redhat.com/show_bug.cgi?id=2464229issue-trackingx_refsource_REDHAT
• security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40912.jsonx_sadp-csaf-vex
• access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:21772vendor-advisoryx_refsource_REDHAT