CVE-2026-44935 json
Rancher Fleet vulnerable to cross namespace secret disclosure via unvalidated `valuesFrom` references in Helm Deployer
published 4mo ago modified 15d ago also GHSA-xr65-5cpm-g36x , GO-2026-5877 , EUVD-2026-41408
- cvss
- 9.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
Summary
Missing validation of "valuesFrom" references in Helm Deployer of 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 0.12.15 could be used by owners of one tenant to access fleet credentials of other tenants.
Patch / fix
- go github.com/rancher/fleet 0.12.15, 0.13.11, 0.14.6, 0.15.2
- SUSE Rancher 0.12.15, 0.13.11, 0.14.6, 0.15.2
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
Is CVE-2026-44935 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 4mo ago
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| GitHub | 3.1 | 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/rancher/fleet | >=0.15.0, <0.15.2 >=0.14.0, <0.14.6 >=0.13.0, <0.13.11 >=0.12.0, <0.12.15 |
0.15.2 0.14.6 0.13.11 0.12.15 |
Affected products
- SUSE Rancher
Classification
References
-
github.com
/rancher/fleet/security/advisories/GHSA-xr65-5cpm-g36x
vendor-advisory, web, advisory
-
github.com
/rancher/fleet
package
Sources
- CVE List CVE-2026-44935
- GitHub Advisory GHSA-xr65-5cpm-g36x
- NVD CVE-2026-44935
- OSV GO-2026-5877
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