CVE-2026-4789 json
CVE-2026-4789
published 2026-03-30 7 mo ago modified 2026-09-10 1 mo ago also BIT-kyverno-2026-4789 , EUVD-2026-17241 , GHSA-rggm-jjmc-3394 , GO-2026-5621
- cvss
- 9.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 53%
- public exploits
- 0
- none known
Summary
Kyverno, versions 1.16.0 and later, are vulnerable to SSRF due to unrestricted CEL HTTP functions.
Patch / fix
- go github.com/kyverno/kyverno 1.17.0
- bitnami kyverno 1.17.2
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
- kyverno openSUSE Tumbleweed 1.17.2-1.1
opensuse advisories openSUSE-SU-2026:21483-1openSUSE-SU-2026:10613-1
- github.com/kyverno/kyverno#15729 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- total
- Assessed
- 7 mo ago
Exploit prediction
0.71% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
| CNA | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/kyverno/kyverno | >=1.16.0, <1.17.0 |
1.17.0 |
| bitnami | kyverno | >=1.16.0, <1.17.2 |
1.17.2 |
Affected products
- Kyverno Kyverno
Classification
- Weakness
-
- CWE-918 Server-Side Request Forgery
References
-
github.com
/kyverno/kyverno/pull/15729
web, patch
-
github.com
/kyverno/kyverno
package, product, web
-
kb.cert.org
/vuls/id/655822
third-party-advisory, advisory
-
portswigger.net
/web-security/ssrf
technical-description, article
-
kb.cert.org
/vuls/id/655822
web, third-party-advisory, advisory
-
github.com
/kyverno/kyverno/security/advisories/GHSA-rggm-jjmc-3394
web, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-4789
advisory, web
Sources
- CVE List CVE-2026-4789
- GitHub Advisory GHSA-rggm-jjmc-3394
- NVD CVE-2026-4789
- OSV BIT-kyverno-2026-4789
- OSV GO-2026-5621
Fencer Vulns 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.