CVEvulnerability

CVE-2026-23742

8.8 HIGH Published 2026-01-16 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-01-16
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-250, CWE-522, CWE-94

Description

Skipper is an HTTP router and reverse proxy for service composition. The default skipper configuration before 0.23.0 was -lua-sources=inline,file. The problem starts if untrusted users can create lua filters, because of -lua-sources=inline , for example through a Kubernetes Ingress resource. The configuration inline allows these user to create a script that is able to read the filesystem accessible to the skipper process and if the user has access to read the logs, they an read skipper secrets. This vulnerability is fixed in 0.23.0.

Affected configurations

• zalando skipper (< 0.23.0)

Related

Weakness · CWE (3)

  • CWE-250 Execution with Unnecessary Privileges weakness
  • CWE-522 Insufficiently Protected Credentials weakness
  • CWE-94 Improper Control of Generation of Code weakness

References