OpenCost < 1.121.0 Unauthenticated Helm Values Exposure and Admin Bypass
41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 8.7epss 0.3%
exploitation probability
0.3%top 79% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
OpenCost before 1.121.0 fails to authenticate the GET /helmValues endpoint, exposing base64-decoded HELM_VALUES environment variable containing cloud provider credentials. Additionally, adminAuthMiddleware fails open when ADMIN_TOKEN is unset, allowing unauthenticated attackers to modify GCP service account keys via POST /serviceKey to redirect billing calls.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
opencost · opencostpublic PoCs found — 1
cve_referencegithub.com/opencost/opencost/issues/3893unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/opencost/opencost/commit/a49a25bc2e0d6e220a131a4dc58f38ebe6ae851bhttps://github.com/opencost/opencost/issues/3893https://github.com/opencost/opencost/pull/3910https://github.com/opencost/opencost/releases/tag/core/v1.121.0https://www.vulncheck.com/advisories/opencost-unauthenticated-helm-values-exposure-and-admin-bypass