CVE-2026-44300
- Source
- https://cve.org/CVERecord?id=CVE-2026-44300
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-44300.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-44300
- Aliases
- Downstream
- Related
- Published
- 2026-09-15T17:08:15Z
- Modified
- 2026-10-16T02:59:42Z
- Severity
-
- 8.8 (High) CVSS_V4 - 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 CVSS Calculator
- Summary
- OpenCost ServiceKey Endpoint Unauthorized Credential Overwrite/Injection
- Details
-
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.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-20", "CWE-309" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44300.json" }- References
-
- https://github.com/opencost/opencost/releases/tag/v1.120.0
- https://github.com/opencost/opencost/releases/tag/v1.121.0
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44300.json
- https://github.com/opencost/opencost/security/advisories/GHSA-wmj8-9953-vff5
- https://nvd.nist.gov/vuln/detail/CVE-2026-44300
- https://github.com/opencost/opencost/commit/69430e7f627b3e62c8999312c06949267fab813a
- https://github.com/opencost/opencost/commit/a49a25bc2e0d6e220a131a4dc58f38ebe6ae851b
- https://github.com/opencost/opencost/pull/3651
- https://github.com/opencost/opencost/pull/3910
Affected packages
Git / github.com/opencost/opencost
Affected ranges
- Type
- GIT
- Repo
- https://github.com/opencost/opencost
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "1.121.0" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "69430e7f627b3e62c8999312c06949267fab813a" } ], "source": "REFERENCES_COMMIT" }, { "range": [ { "fixed": "a49a25bc2e0d6e220a131a4dc58f38ebe6ae851b" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v1.120.0", "range": [ { "fixed": "22da667c047765788a5cb8b01c1e8ad4cb87fc0a" } ], "source": "REFERENCES_TAG" }, { "original_tag": "v1.121.0", "range": [ { "fixed": "f5fc438c9a237847964aa561b5a593aa622f91df" } ], "source": "REFERENCES_TAG" } ] }
Affected versions
core/v1.*
core/v1.117.0
core/v1.117.2
core/v1.117.3
core/v1.117.5
core/v1.117.6
core/v1.118.0
core/v1.118.1
core/v1.119.0
core/v1.119.1
core/v1.119.2
kc-2.*
kc-2.5.4
kc-2.5.4-rc.3
kc-2.5.4-rc.4
kc-2.5.5
kc-2.5.5-rc.0
kc-2.5.5-rc.1
kc-2.5.5-rc.2
kc-2.6.0
kc-2.6.0-rc.1
kc-2.6.0-rc.2
kc-2.6.0-rc.3
kc-2.6.0-rc.4
kc-2.6.0-rc.5
kc-2.6.0-rc.6
kc-2.6.0-rc.7
kc-2.6.1
kc-2.6.1-rc.0
kc-2.6.1-rc.1
kc-2.6.1-rc.2
kc-2.6.2
kc-2.6.2-rc.0
kc-2.6.2-rc.1
kc-2.6.3
kc-2.6.3-rc.2
kc-2.6.4
kc-2.6.4-rc.0
kc-2.6.5
kc-2.6.5-rc.0
kc-2.6.5-rc.1
kc-2.7.0
kc-2.7.0-rc.0
kc-2.7.0-rc.1
kc-2.7.0-rc.2
kc-2.8.0-rc.0
kc-2.9.7
kc-3.*
kc-3.0.0
kc-3.0.0-rc.0
kc-3.0.0-rc.1
kc-3.0.0-rc.2
kc-3.0.0-rc.5
kc-3.0.0-rc.6
kc-3.0.0-test.0
kc-3.0.3
kc-3.0.3-rc.0
kc-3.0.3-rc.1
kc-3.0.4-rc.0
kc-3.1.0
kc-3.1.0-rc.0
modules/collector-source/v1.*
modules/collector-source/v1.117.0
modules/collector-source/v1.117.2
modules/collector-source/v1.117.3
modules/collector-source/v1.117.5
modules/collector-source/v1.117.6
modules/collector-source/v1.118.0
modules/collector-source/v1.118.1
modules/collector-source/v1.119.0
modules/collector-source/v1.119.1
modules/collector-source/v1.119.2
modules/prometheus-source/v1.*
modules/prometheus-source/v1.117.0
modules/prometheus-source/v1.117.2
modules/prometheus-source/v1.117.3
modules/prometheus-source/v1.117.5
modules/prometheus-source/v1.117.6
modules/prometheus-source/v1.118.0
modules/prometheus-source/v1.118.1
modules/prometheus-source/v1.119.0
modules/prometheus-source/v1.119.1
modules/prometheus-source/v1.119.2
v0.*
v0.0.0000000001-rc.0
v0.0.0000000001-test.0
v0.0.000000001-rc.0
v0.0.0000001-depotdev.01
v0.0.1-actdev.1
v0.0.1-actdev.2
v0.0.1-depotdev.01
v0.0.1-depotprodtestrun.1
v0.000000001.0-rc.0
v1.*
v1.102.0-rc.0
v1.103.0-rc.0
v1.103.0-rc.1
v1.104.0-rc.0
v1.105.0-rc.0
v1.106.0-rc.0
v1.106.0-rc.1
v1.107.0-rc.0
v1.109
v1.110
v1.111.0
v1.112.0
v1.113.0
v1.114.0
v1.116
v1.116.0
v1.117
v1.117.0
v1.117.2
v1.117.3
v1.117.4
v1.117.5
v1.117.6
v1.118
v1.118.0
v1.118.1
v1.119
v1.119.0
v1.119.1
v1.119.2
v1.45.3
v1.91.0-rc.0
v2.*
v2.0.0-rc.0
v2.0.0-rc.1
v2.1.0-rc.0
v2.1.0-rc.1
v2.1.0-rc.2
v2.1.0-rc.3
v2.1.0-rc.4
v2.1.0-rc.5
v2.2.0-rc.0
v2.2.0-rc.1
v2.2.0-rc.2
v2.3.0-rc.0
v2.4.0-rc.0
v2.5.0-rc.0
v2.5.0-rc.1
v2.6.0-rc.0