CVE-2026-1580 json
ingress-nginx auth-method nginx configuration injection
published 2026-02-03 9 mo ago modified 2026-09-10 1 mo ago also EUVD-2026-5514 , GHSA-9h3p-52vh-959w , GO-2026-4423
- cvss
- 8.8
- 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 45%
- public exploits
- 0
- none known
Summary
A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/auth-method` Ingress annotation can be used to inject configuration into nginx. This can lead to arbitrary code execution in the context of the ingress-nginx controller, and disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)
Patch / fix
- go k8s.io/ingress-nginx 1.13.7, 1.14.3
- Kubernetes ingress-nginx 1.13.7, 1.14.3
- govulncheck-vulndb openSUSE Leap 15.6 0.0.20260205T172317-150000.1.146.1
suse advisories SUSE-SU-2026:0403-1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 9 mo ago
Exploit prediction
0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | k8s.io/ingress-nginx | <1.13.7 >=1.14.0, <1.14.3 all versions |
1.13.7 1.14.3 |
Affected products
- Kubernetes ingress-nginx
Classification
- Weakness
-
- CWE-20 Improper Input Validation
- Technology feeds
References
Sources
- CVE List CVE-2026-1580
- GitHub Advisory GHSA-9h3p-52vh-959w
- NVD CVE-2026-1580
- OSV GO-2026-4423
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.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.