CVE-2026-79767 json
Gardener: Authorization Bypass via Group Subject Injection
published last mo. modified 7d ago also EUVD-2026-84821 , GHSA-gfjv-gqf2-c888 , GO-2026-6568
- cvss
- 5.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 33%
- public exploits
- 0
- none known
Summary
Gardener implements the automated management and operation of Kubernetes clusters as a service. Prior to 1.142.6, 1.143.3, 1.144.2, and 1.145.0, the customverbauthorizer admission plugin's mustCheckProjectMembers manage-members check compares changes to User subjects but does not account for Group or ServiceAccount subjects in Project.spec.members. A project administrator who lacks manage-members permission can add arbitrary Group or ServiceAccount subjects, including the system:authenticated Group, and thereby grant broad project access. The resulting access can include Shoots, Secrets, and cloud provider credentials. This issue is fixed in versions 1.142.6, 1.143.3, 1.144.2, and 1.145.0.
Patch / fix
- go github.com/gardener/gardener 1.142.6, 1.143.3, 1.144.2
- gardener gardener 1.142.6, 1.143.3, 1.144.2
- github.com/gardener/gardener@63751db commit
- github.com/gardener/gardener#15080 pull request
- github.com/gardener/gardener/releases/tag/v1.144.2 release
Is CVE-2026-79767 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
- partial
- Assessed
- last mo.
Exploit prediction
0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.5 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N |
| GitHub | 3.1 | 5.5 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/gardener/gardener | <1.142.6 >=1.143.0, <1.143.3 >=1.144.0, <1.144.2 all versions |
1.142.6 1.143.3 1.144.2 |
Affected products
- gardener gardener
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
github.com
/gardener/gardener/pull/15080
web, patch
-
github.com
/gardener/gardener/commit/63751db97dca6cc5ee5f966d4963415de6ae5545
web, patch
-
github.com
/gardener/gardener/security/advisories/GHSA-gfjv-gqf2-c888
web, advisory
-
github.com
/gardener/gardener/releases/tag/v1.144.2
web
-
nvd.nist.gov
/vuln/detail/CVE-2026-79767
advisory
-
github.com
/gardener/gardener
package
Sources
- CVE List CVE-2026-79767
- GitHub Advisory GHSA-gfjv-gqf2-c888
- NVD CVE-2026-79767
- OSV GO-2026-6568
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.