CVE catalog

CVE-2024-7246

grpc: CVE-2024-7246

Severity: Medium · CVSS 5.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Published: Aug 6, 2024, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.22% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	grpc	sid	`1.51.1-10`	vulnerable
Debian	grpc	forky	`1.51.1-10`	vulnerable
Debian	grpc	trixie	`1.51.1-6`	vulnerable
Debian	grpc	bookworm	`1.51.1-3`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	grpc	source	sid	`(unfixed)`	not yet assigned	Not reported	[1082856]
Debian	grpc	source	forky	`(unfixed)`	not yet assigned	Not reported	[1082856]
Debian	grpc	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1082856]
Debian	grpc	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1082856]

[Debian bug #1082856]

Notes

[trixie] grpc: Minor issue [bookworm] grpc: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libgrpc++1.51]Affected
Source package: [grpc]
Details (2)
- 1.51.1-3+b1 · amd64 · bookworm
  Affected
  dsa · grpc · debian · bookworm; dsa · grpc · debian · 12
- 1.51.1-3+b1 · arm64 · bookworm
  Affected
  dsa · grpc · debian · bookworm; dsa · grpc · debian · 12
[libgrpc29]Affected
Source package: [grpc]
Details (2)
- 1.51.1-3+b1 · amd64 · bookworm
  Affected
  dsa · grpc · debian · bookworm; dsa · grpc · debian · 12
- 1.51.1-3+b1 · arm64 · bookworm
  Affected
  dsa · grpc · debian · bookworm; dsa · grpc · debian · 12
[libgrpc++-dev]Affected
Source package: [grpc]
Details (2)
- 1.51.1-3+b1 · amd64 · bookworm
  Affected
  dsa · grpc · debian · bookworm; dsa · grpc · debian · 12
- 1.51.1-3+b1 · arm64 · bookworm
  Affected
  dsa · grpc · debian · bookworm; dsa · grpc · debian · 12
[libgrpc-dev]Affected
Source package: [grpc]
Details (2)
- 1.51.1-3+b1 · amd64 · bookworm
  Affected
  dsa · grpc · debian · bookworm; dsa · grpc · debian · 12
- 1.51.1-3+b1 · arm64 · bookworm
  Affected
  dsa · grpc · debian · bookworm; dsa · grpc · debian · 12
[protobuf-compiler-grpc]Affected
Source package: [grpc]
Details (2)
- 1.51.1-3+b1 · amd64 · bookworm
  Affected
  dsa · grpc · debian · bookworm; dsa · grpc · debian · 12
- 1.51.1-3+b1 · arm64 · bookworm
  Affected
  dsa · grpc · debian · bookworm; dsa · grpc · debian · 12
[python3-grpcio]Affected
Source package: [grpc]
Details (2)
- 1.51.1-3+b1 · amd64 · bookworm
  Affected
  dsa · grpc · debian · bookworm; dsa · grpc · debian · 12
- 1.51.1-3+b1 · arm64 · bookworm
  Affected
  dsa · grpc · debian · bookworm; dsa · grpc · debian · 12
[ruby-grpc]Affected
Source package: [grpc]
Details (2)
- 1.51.1-3+b1 · amd64 · bookworm
  Affected
  dsa · grpc · debian · bookworm; dsa · grpc · debian · 12
- 1.51.1-3+b1 · arm64 · bookworm
  Affected
  dsa · grpc · debian · bookworm; dsa · grpc · debian · 12
[ruby-grpc-tools]Affected
Source package: [grpc]
Details (2)
- 1.51.1-3 · all · bookworm
  Affected
  dsa · grpc · debian · bookworm; dsa · grpc · debian · 12
- 1.51.1-3 · all · bookworm
  Affected
  dsa · grpc · debian · bookworm; dsa · grpc · debian · 12

[Debian 13 (Trixie)]

[libgrpc++1.51t64]Affected
Source package: [grpc]
Details (2)
- 1.51.1-6 · amd64 · trixie
  Affected
  dsa · grpc · debian · 13
- 1.51.1-6 · arm64 · trixie
  Affected
  dsa · grpc · debian · 13
[libgrpc29t64]Affected
Source package: [grpc]
Details (2)
- 1.51.1-6 · amd64 · trixie
  Affected
  dsa · grpc · debian · 13
- 1.51.1-6 · arm64 · trixie
  Affected
  dsa · grpc · debian · 13
[libgrpc++-dev]Affected
Source package: [grpc]
Details (2)
- 1.51.1-6 · amd64 · trixie
  Affected
  dsa · grpc · debian · 13
- 1.51.1-6 · arm64 · trixie
  Affected
  dsa · grpc · debian · 13
[libgrpc-dev]Affected
Source package: [grpc]
Details (2)
- 1.51.1-6 · amd64 · trixie
  Affected
  dsa · grpc · debian · 13
- 1.51.1-6 · arm64 · trixie
  Affected
  dsa · grpc · debian · 13
[protobuf-compiler-grpc]Affected
Source package: [grpc]
Details (2)
- 1.51.1-6 · amd64 · trixie
  Affected
  dsa · grpc · debian · 13
- 1.51.1-6 · arm64 · trixie
  Affected
  dsa · grpc · debian · 13
[python3-grpcio]Affected
Source package: [grpc]
Details (2)
- 1.51.1-6 · amd64 · trixie
  Affected
  dsa · grpc · debian · 13
- 1.51.1-6 · arm64 · trixie
  Affected
  dsa · grpc · debian · 13
[ruby-grpc]Affected
Source package: [grpc]
Details (2)
- 1.51.1-6 · amd64 · trixie
  Affected
  dsa · grpc · debian · 13
- 1.51.1-6 · arm64 · trixie
  Affected
  dsa · grpc · debian · 13
[ruby-grpc-tools]Affected
Source package: [grpc]
Details (2)
- 1.51.1-6 · all · trixie
  Affected
  dsa · grpc · debian · 13
- 1.51.1-6 · all · trixie
  Affected
  dsa · grpc · debian · 13

Observed: Oct 27, 2026, 2:35:05 AM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]