CVE-2026-109141

High

Description

The vulnerability gives a role that is restricted to a list of CAs (cas = [...]) its full permission set for every request that is not tied to a CA, including the bulk import endpoint POST /api/v1/bulk/cas/import. It adds a new child CA under any existing CA, gives the child any of that CA's resources, and creates the ROAs given in the request

SeverityHigh

CVSS8.4

Exploit probability—

ProductKrill

PublishedNov 2, 2026

First seenNov 4, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Vendor advisories

nlnetlabs.nl/downloads/krill/CVE-2026-109141.txt

Affected products

Product	Affected versions	Fixed in
NLnet Labs Krill	No range specified	—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.