CVE-2026-1172 identifies a denial of service vulnerability in the birkir prime software, specifically versions up to 0.4.0.beta.0. The vulnerability resides in an unspecified function within the /graphql endpoint, which handles GraphQL directives. GraphQL is a query language for APIs commonly used to enable flexible data retrieval. The flaw allows a remote attacker to send crafted requests to the /graphql endpoint that trigger resource exhaustion or application crashes, leading to denial of service. The vulnerability requires no authentication or user interaction, making it remotely exploitable over the network. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P) indicates network attack vector, low complexity, no privileges or user interaction needed, and limited impact on availability. The vendor was informed early via an issue report but has not yet responded or released a patch, increasing the risk window. Although no public exploits are currently known in the wild, the public disclosure of the vulnerability details raises the likelihood of future exploitation attempts. The vulnerability impacts the availability of services relying on birkir prime's GraphQL API, potentially causing downtime or degraded performance. Organizations using this software in production environments should consider this a significant risk, especially if the /graphql endpoint is exposed externally.

For European organizations, the primary impact is service disruption due to denial of service attacks targeting the vulnerable /graphql endpoint in birkir prime. This can lead to downtime of critical applications or APIs, affecting business continuity and user experience. Industries relying on real-time data access or API-driven services, such as finance, e-commerce, and telecommunications, may experience operational interruptions. The lack of authentication requirements and ease of exploitation increase the risk of automated attacks. Additionally, unpatched systems could be leveraged as vectors for larger distributed denial of service (DDoS) campaigns or to degrade the availability of interconnected services. The reputational damage and potential regulatory scrutiny under GDPR for service outages could further compound the impact. Since the vendor has not yet provided a patch, organizations face a prolonged exposure period, necessitating interim protective measures.

1. Immediately restrict external access to the /graphql endpoint by implementing network-level controls such as firewalls or API gateways to limit exposure only to trusted sources. 2. Employ rate limiting and anomaly detection on GraphQL queries to detect and block suspicious or excessive requests that could trigger the DoS condition. 3. Monitor application logs and network traffic for unusual patterns targeting the /graphql endpoint. 4. Engage with the birkir project or community to track the release of patches or updates addressing this vulnerability. 5. Where feasible, deploy web application firewalls (WAFs) with custom rules to detect and block malformed GraphQL requests. 6. Consider temporary disabling or isolating the vulnerable GraphQL directive handler functionality if it is not critical to operations. 7. Prepare incident response plans to quickly mitigate and recover from potential denial of service incidents. 8. Conduct internal security assessments to identify all instances of birkir prime in use and prioritize remediation efforts accordingly.