{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/products/guardrails-detectors/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":9.3,"id":"CVE-2026-15378"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["guardrails-detectors"],"_cs_severities":["critical"],"_cs_tags":["ssrf","vulnerability","cloud","kubernetes","data-exfiltration"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eA critical vulnerability, tracked as CVE-2026-15378, has been identified in the \u003ccode\u003eguardrails-detectors\u003c/code\u003e component. This flaw enables a remote attacker to initiate a blind Server-Side Request Forgery (SSRF) by submitting a meticulously crafted XML Schema Definition (XSD) string. The vulnerability has a CVSS v3.1 Base Score of 9.3, highlighting its severe impact. Successful exploitation can lead to unauthorized access to highly sensitive information, including credentials exposed by cloud metadata services, the Kubernetes API, and internal MinIO instances. Furthermore, it allows for the reading of critical local files, such as service account tokens and pod secrets, potentially compromising the integrity and confidentiality of the affected systems and their associated cloud or containerized environments. This vulnerability presents a significant risk for data exfiltration and privilege escalation within targeted infrastructures.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eA remote attacker identifies an exposed instance of the \u003ccode\u003eguardrails-detectors\u003c/code\u003e component.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious XML Schema Definition (XSD) string designed to perform an SSRF, potentially embedding external entity references or other payload types.\u003c/li\u003e\n\u003cli\u003eThe attacker submits this specially crafted XSD string to the vulnerable \u003ccode\u003eguardrails-detectors\u003c/code\u003e component.\u003c/li\u003e\n\u003cli\u003eUpon processing the XSD, the component initiates an outbound HTTP request (blind SSRF) to an arbitrary internal network endpoint or local file path specified by the attacker, without returning the response directly to the attacker.\u003c/li\u003e\n\u003cli\u003eThrough the SSRF, the attacker gains unauthorized access to internal services, including cloud metadata services, Kubernetes API endpoints, or internal MinIO storage.\u003c/li\u003e\n\u003cli\u003eThe vulnerability also allows for local file reads, enabling the attacker to retrieve sensitive files such as service account tokens and pod secrets from the compromised host.\u003c/li\u003e\n\u003cli\u003eThe attacker infers the success of the SSRF requests and potentially exfiltrates collected sensitive data through out-of-band communication or by triggering specific error conditions.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-15378 results in severe compromise of system confidentiality and potential integrity. Attackers can gain unauthorized access to credentials from cloud metadata services, which can lead to further compromise of cloud resources. Access to the Kubernetes API allows for control over containerized environments, potentially leading to container escape, privilege escalation, or deployment of malicious workloads. Compromising internal MinIO instances can expose large volumes of sensitive data. Additionally, local file reads of service account tokens and pod secrets grant attackers critical authentication material, facilitating lateral movement and persistent access. The blind nature of the SSRF makes detection challenging, increasing the window of opportunity for attackers to cause significant damage, including data theft and disruption of critical services.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePatch CVE-2026-15378 immediately in all \u003ccode\u003eguardrails-detectors\u003c/code\u003e components to remediate the blind SSRF vulnerability.\u003c/li\u003e\n\u003cli\u003eMonitor network outbound connections from \u003ccode\u003eguardrails-detectors\u003c/code\u003e components for unusual requests to internal IP addresses or metadata endpoints, indicating potential SSRF exploitation attempts related to CVE-2026-15378.\u003c/li\u003e\n\u003cli\u003eImplement strong network segmentation to limit the blast radius of successful SSRF attacks, preventing access to critical internal services like Kubernetes API, cloud metadata services, and MinIO.\u003c/li\u003e\n\u003cli\u003eRestrict permissions for the \u003ccode\u003eguardrails-detectors\u003c/code\u003e component to the absolute minimum necessary, following the principle of least privilege, to mitigate the impact of local file read exploits linked to CVE-2026-15378.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-07-10T10:18:07Z","date_published":"2026-07-10T10:18:07Z","id":"https://feed.craftedsignal.io/briefs/2026-07-guardrails-detectors-ssrf/","summary":"A critical blind Server-Side Request Forgery (SSRF) vulnerability, CVE-2026-15378, exists in the `guardrails-detectors` component, allowing a remote attacker to exploit specially crafted XML Schema Definition (XSD) strings to gain unauthorized access to sensitive information from cloud metadata services, Kubernetes API, internal MinIO, and facilitate local file reads of service account tokens and pod secrets.","title":"Critical Blind SSRF Vulnerability in guardrails-detectors (CVE-2026-15378)","url":"https://feed.craftedsignal.io/briefs/2026-07-guardrails-detectors-ssrf/"}],"language":"en","title":"CraftedSignal Threat Feed - Guardrails-Detectors","version":"https://jsonfeed.org/version/1.1"}