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GHSA-7mpv-9xg6-5r79
No affected components available
Impact
Summary
A vulnerability in Apollo Compiler allowed queries with deeply nested and reused named fragments to be prohibitively expensive to validate. This could lead to excessive resource consumption and denial of service in applications.
Details
Named fragments were being processed once per fragment spread in some cases during query validation, leading to exponential resource usage when deeply nested and reused fragments were involved.
Fix/Mitigation
The validation logic has been updated to process each named fragment only once, preventing redundant traversal.
Patches
This has been remediated in apollo-compiler version 1.27.0.
Workarounds
No known direct workarounds exist.
Acknowledgements
We appreciate the efforts of the security community in identifying and improving the performance and security of query validation mechanisms.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the availability of the system.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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