CVE-2024-7246

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
GoogleCNA
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CISA-ADPADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 8%
VendorProductVersion
grpcgrpc
𝑥
< 1.58.3
grpcgrpc
1.59.0 ≤
𝑥
< 1.59.5
grpcgrpc
1.60.0 ≤
𝑥
< 1.60.2
grpcgrpc
1.61.0 ≤
𝑥
< 1.61.3
grpcgrpc
1.62.0 ≤
𝑥
< 1.62.3
grpcgrpc
1.63.0 ≤
𝑥
< 1.63.2
grpcgrpc
1.64.0 ≤
𝑥
< 1.64.3
grpcgrpc
1.65.0 ≤
𝑥
< 1.65.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
grpc
bullseye
postponed
trixie
no-dsa
bookworm
no-dsa
forky
vulnerable
sid
vulnerable
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
grpc
plucky
needs-triage
oracular
ignored
noble
needs-triage
jammy
needs-triage
focal
needs-triage
bionic
needs-triage
xenial
needs-triage