CVE-2026-44937: Potential forgery of webhook requests when using a unauthenticated webhook in SUSE Rancher Fleet 0.15 before 0.15.2, 0.14 before 0.14.6, 0.13 before 0.13.11…

PriorityP347high8.2CVSS 3.1

AVNACLPRNUINSUCNILAH

EPSS

0.51%

39.7th percentile

Potential forgery of webhook requests when using a unauthenticated webhook in SUSE Rancher Fleet 0.15 before 0.15.2, 0.14 before 0.14.6, 0.13 before 0.13.11 and 0.12 before 0.12.5 could be used by remote attackers to cause a denial of service or a downgrade attack on other repositories on the system.

Affected

12 ranges

Vendor	Product	Version range	Fixed in
github.com	rancher_fleet	>= 0.12.0 < 0.12.15	0.12.15
github.com	rancher_fleet	>= 0.13.0 < 0.13.11	0.13.11
github.com	rancher_fleet	>= 0.14.0 < 0.14.6	0.14.6
github.com	rancher_fleet	>= 0.15.0 < 0.15.2	0.15.2
suse	rancher	>= 0.12.0 < 0.12.15	0.12.15
suse	rancher	>= 0.13.0 < 0.13.11	0.13.11
suse	rancher	>= 0.14.0 < 0.14.6	0.14.6
suse	rancher	>= 0.15.0 < 0.15.2	0.15.2
suse	rancher_fleet	>= 0.12.0 < 0.12.15	0.12.15
suse	rancher_fleet	>= 0.13.0 < 0.13.11	0.13.11
suse	rancher_fleet	>= 0.14.0 < 0.14.6	0.14.6
suse	rancher_fleet	>= 0.15.0 < 0.15.2	0.15.2

CVSS provenance

nvdv3.18.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

nvdv4.08.3HIGHCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/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

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.