CVE-2026-44300
גבוהה 8.8
תיאור (מקור, אנגלית)
OpenCost provides cost monitoring for Kubernetes workloads and cloud costs. Prior to 1.121.0, the POST /serviceKey endpoint in pkg/costmodel/router.go allows a network client to invoke AddServiceKey without mandatory authentication and submit an arbitrary key form value that is written to the GCP service-account key.json file returned by GetGCPAuthSecretFilePath in core/pkg/env/core.go. The attacker controls the file contents but not the CONFIG_PATH-derived directory, the key.json filename, or the file mode. Replacing the credential contents can disrupt GCP cost collection or cause OpenCost to use attacker-selected credentials, and the wildcard Access-Control-Allow-Origin response permits browser-assisted requests when the service is reachable from a browser. This issue is fixed in version 1.121.0.
מדדים
- CVSS 4.0
-
8.8 (HIGH)
מקור הציון: CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — סבירות ניצול
- 1% (אחוזון 100) נכון ל-27/9/2026
- CWE
- CWE-20, CWE-309
קישורים
- https://github.com/opencost/opencost/commit/69430e7f627b3e62c8999312c06949267f…
- https://github.com/opencost/opencost/commit/a49a25bc2e0d6e220a131a4dc58f38ebe6…
- https://github.com/opencost/opencost/pull/3651
- https://github.com/opencost/opencost/pull/3910
- https://github.com/opencost/opencost/releases/tag/v1.120.0
- https://github.com/opencost/opencost/releases/tag/v1.121.0
- https://github.com/opencost/opencost/security/advisories/GHSA-wmj8-9953-vff5