What’s Vulnerable › Vulnerabilities

CVE-2022-23536: Alertmanager can expose local files content via specially crafted config

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-12-19 · updated 2026-06-17
• Weakness: CWE-73

Description

Cortex provides multi-tenant, long term storage for Prometheus. A local file inclusion vulnerability exists in Cortex versions 1.13.0, 1.13.1 and 1.14.0, where a malicious actor could remotely read local files as a result of parsing maliciously crafted Alertmanager configurations when submitted to the Alertmanager Set Configuration API. Only users of the Alertmanager service where `-experimental.alertmanager.enable-api` or `enable_api: true` is configured are affected. Affected Cortex users are advised to upgrade to patched versions 1.13.2 or 1.14.1. However as a workaround, Cortex administrators may reject Alertmanager configurations containing the `api_key_file` setting in the `opsgenie_configs` section before sending to the Set Alertmanager Configuration API.

Affected products

• cortexproject cortex: 1.13.0, 1.13.1, 1.14.0

References

• https://cortexmetrics.io/docs/api/#set-alertmanager-configuration
• https://github.com/cortexproject/cortex/releases/tag/v1.13.2
• https://github.com/cortexproject/cortex/releases/tag/v1.14.1
• https://github.com/cortexproject/cortex/security/advisories/GHSA-cq2g-pw6q-hf7j
• https://cortexmetrics.io/docs/api/#set-alertmanager-configuration
• https://github.com/cortexproject/cortex/releases/tag/v1.13.2
• https://github.com/cortexproject/cortex/releases/tag/v1.14.1
• https://github.com/cortexproject/cortex/security/advisories/GHSA-cq2g-pw6q-hf7j

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