CVE-2024-7246
mediumpriority · track · 21EPSS 0.002 · 13 %ileEUUSEPSS · scored 2026-10-27
It's possible for a gRPC client communicating with a HTTP/2 proxy to poison the HPACK table between the proxy and the backend such that other clients see failed requests. It's also possible to use this vulnerability to leak other clients HTTP header keys, but not values. This occurs because the error status for a misencoded header is not cleared between header reads, resulting in subsequent (incrementally indexed) added headers in the first request being poisoned until cleared from the HPACK table. Please update to a fixed version of gRPC as soon as possible. This bug has been fixed in 1.58.3, 1.59.5, 1.60.2, 1.61.3, 1.62.3, 1.63.2, 1.64.3, 1.65.4.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.7–6.3
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
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affected products (50)
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also known as (3)
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sources
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references (7)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2024-7246cnnvd
- https://cxsecurity.com/cveshow/CVE-2024-7246/cnnvd
- https://github.com/grpc/grpc/issues/36245cnnvd
- https://github.com/grpc/grpc/releases/tag/v1.65.4Patchcnnvd
- https://vigilance.fr/vulnerability/gRPC-denial-of-service-via-HPACK-Table-Poisoning-45535cnnvd
- https://github.com/grpc/grpc/issues/36245enisa_euvd
- https://github.com/grpc/grpc/issues/36245ExploitIssue TrackingPatchnvd
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