cbcvebase.
CVE-2026-44949
published 2026-06-30

CVE-2026-44949: A Rancher FleetWorkspace admission path allowed side effects to occur in the Rancher webhook handler for versions 0.7.0 up to 0.7.10, 0.8.0 up to 0.8.7, 0.9.0…

PriorityP343high7CVSS 4.0
AVNACLATPPRLUINVCNVIHVANSCNSIHSANEXCRXIRXARXMAVXMACXMATXMPRXMUIXMVCXMVIXMVAXMSCXMSIXMSAXSXAUXRXVXREXUX
EPSS
0.23%
14.0th percentile
A Rancher FleetWorkspace admission path allowed side effects to occur in the Rancher webhook handler for versions 0.7.0 up to 0.7.10, 0.8.0 up to 0.8.7, 0.9.0 up to 0.9.6 and 0.10.0 up to 0.10.7. An unauthenticated attacker with network access to the in-cluster rancher-webhook service could submit a crafted admission payload and cause workspace-related Kubernetes objects to be created with attacker-chosen identity data.

Affected

4 ranges
VendorProductVersion rangeFixed in
suserancher>= 0.10.0 < 0.10.70.10.7
suserancher>= 0.7.0 < 0.7.100.7.10
suserancher>= 0.8.0 < 0.8.70.8.7
suserancher>= 0.9.0 < 0.9.60.9.6
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.