CVE catalog
CVE-2026-84304
gRPC-Go is the Go language implementation of gRPC. Prior to 1.83.1, internal/transport/transport.go stores each fragmented HTTP/2 DATA frame as a separate recvMsg in recvBuffer, so millions of one-byt
- Severity
- High · CVSS 8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.61% · Oct 25, 2026
gRPC-Go is the Go language implementation of gRPC. Prior to 1.83.1, internal/transport/transport.go stores each fragmented HTTP/2 DATA frame as a separate recvMsg in recvBuffer, so millions of one-byte frames can consume disproportionate heap memory even when payload bytes remain within connection and stream flow-control windows. An unauthenticated remote attacker can use concurrent multiplexed streams to exhaust process memory and cause a runtime panic or out-of-memory termination. Receive-buffer compaction is enabled by default and can be controlled temporarily with GRPC_GO_EXPERIMENTAL_ENABLE_RECEIVE_BUFFER_COMPACTION. This issue is fixed in version 1.83.1.
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 | golang-google-grpc | sid | 1.81.1-1 | vulnerable |
| Debian | golang-google-grpc | forky | 1.81.1-1 | vulnerable |
| Debian | golang-google-grpc | trixie | 1.64.0-7 | vulnerable |
| Debian | golang-google-grpc | bookworm | 1.33.3-2 | vulnerable |
| Go | google.golang.org/grpc | Not reported | 1.83.1 | fixed |
| Go | google.golang.org/grpc | Not reported | 1.83.1 | fixed |
| Opensuse | amazon-ecs-init | leap 16.0 | 1.107.0-160000.1.1 | fixed |
| Opensuse | prometheus-blackbox_exporter | tumbleweed | 0.26.0-9.1 | fixed |
| Opensuse | wait4x | tumbleweed | 3.7.2-1.1 | fixed |
| Opensuse | kubectl-cnpg | tumbleweed | 1.30.1-1.1 | fixed |
| Opensuse | google-guest-agent | tumbleweed | 20260903.01-1.1 | fixed |
| Opensuse | azure-storage-azcopy | tumbleweed | 10.32.8-1.1 | fixed |
| Opensuse | coredns | leap 16.0 | 1.14.7-bp160.2.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | golang-google-grpc | source | sid | (unfixed) | not yet assigned | Not reported | [1146639] |
| Debian | golang-google-grpc | source | forky | (unfixed) | not yet assigned | Not reported | [1146639] |
| Debian | golang-google-grpc | source | trixie | (unfixed) | not yet assigned | Not reported | [1146639] |
| Debian | golang-google-grpc | source | bookworm | (unfixed) | not yet assigned | Not reported | [1146639] |
| Go | google.golang.org/grpc | Go | Not reported | 1.83.1 | Not reported | GHSA-VP52-PCJ8-J9QC | Not reported |
| Go | google.golang.org/grpc | Go | Not reported | 1.83.1 | Not reported | GO-2026-6348 | Not reported |
| Opensuse | amazon-ecs-init | rpm | leap 16.0 | 1.107.0-160000.1.1 | Not reported | OPENSUSE-SU-2026:22035-1 | Not reported |
| Opensuse | prometheus-blackbox_exporter | rpm | tumbleweed | 0.26.0-9.1 | Not reported | OPENSUSE-SU-2026:11925-1 | Not reported |
| Opensuse | wait4x | rpm | tumbleweed | 3.7.2-1.1 | Not reported | OPENSUSE-SU-2026:11911-1 | Not reported |
| Opensuse | kubectl-cnpg | rpm | tumbleweed | 1.30.1-1.1 | Not reported | OPENSUSE-SU-2026:11881-1 | Not reported |
| Opensuse | google-guest-agent | rpm | tumbleweed | 20260903.01-1.1 | Not reported | OPENSUSE-SU-2026:11742-1 | Not reported |
| Opensuse | azure-storage-azcopy | rpm | tumbleweed | 10.32.8-1.1 | Not reported | OPENSUSE-SU-2026:11740-1 | Not reported |
| Opensuse | coredns | rpm | leap 16.0 | 1.14.7-bp160.2.1 | Not reported | OPENSUSE-SU-2026:22135-1 | Not reported |
Notes
[trixie] golang-google-grpc: Minor issue [bookworm] golang-google-grpc: Limited support, minor issue; OOM DoS
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [golang-google-grpc-dev]Affected
Source package: [golang-google-grpc]
Details (2)
1.33.3-2· all · bookwormAffected
nvd · golang-google-grpc · debian · bookworm; nvd · golang-google-grpc · debian · 12
1.33.3-2· all · bookwormAffected
nvd · golang-google-grpc · debian · bookworm; nvd · golang-google-grpc · debian · 12
- [protoc-gen-go-grpc]Affected
Source package: [golang-google-grpc]
Details (2)
1.33.3-2+b4· amd64 · bookwormAffected
nvd · golang-google-grpc · debian · bookworm; nvd · golang-google-grpc · debian · 12
1.33.3-2+b4· arm64 · bookwormAffected
nvd · golang-google-grpc · debian · bookworm; nvd · golang-google-grpc · debian · 12
[Debian 13 (Trixie)]
- [golang-google-grpc-dev]Affected
Source package: [golang-google-grpc]
Details (4)
1.64.0-7· all · trixieAffected
nvd · golang-google-grpc · debian · 13
1.64.0-7· all · trixieAffected
nvd · golang-google-grpc · debian · 13
1.79.3-1~bpo13+1· all · trixie-backportsAffected
nvd · golang-google-grpc · debian · 13
1.79.3-1~bpo13+1· all · trixie-backportsAffected
nvd · golang-google-grpc · debian · 13
- [protoc-gen-go-grpc]Affected
Source package: [golang-google-grpc]
Details (4)
1.64.0-7+b2· amd64 · trixieAffected
nvd · golang-google-grpc · debian · 13
1.64.0-7+b2· arm64 · trixieAffected
nvd · golang-google-grpc · debian · 13
1.79.3-1~bpo13+1· amd64 · trixie-backportsAffected
nvd · golang-google-grpc · debian · 13
1.79.3-1~bpo13+1· arm64 · trixie-backportsAffected
nvd · golang-google-grpc · debian · 13
[openSUSE Tumbleweed]
- [azure-storage-azcopy]Affected
Source package: [azure-storage-azcopy]
Details (1)
10.32.7-1.1· x86_64 · tumbleweedAffected · Fixed:
10.32.8-1.1nvd · azure-storage-azcopy · opensuse · tumbleweed
- [google-guest-agent]Affected
Source package: [google-guest-agent]
Details (1)
20260803.00-2.1· x86_64 · tumbleweedAffected · Fixed:
20260903.01-1.1nvd · google-guest-agent · opensuse · tumbleweed
- [kubectl-cnpg]Affected
Source package: [kubectl-cnpg]
Details (1)
1.29.2-1.3· x86_64 · tumbleweedAffected · Fixed:
1.30.1-1.1nvd · kubectl-cnpg · opensuse · tumbleweed
- [prometheus-blackbox_exporter]Affected
Source package: [prometheus-blackbox_exporter]
Details (1)
0.26.0-7.3· x86_64 · tumbleweedAffected · Fixed:
0.26.0-9.1nvd · prometheus-blackbox_exporter · opensuse · tumbleweed
- [wait4x]Affected
Source package: [wait4x]
Details (1)
3.7.1-1.1· x86_64 · tumbleweedAffected · Fixed:
3.7.2-1.1nvd · wait4x · opensuse · tumbleweed
- [kubectl-cnpg-bash-completion]Unknown
Source package: [kubectl-cnpg]
Details (1)
1.29.2-1.3· noarch · tumbleweedUnknown · Fixed:
1.30.1-1.1Version impact unknown
nvd · kubectl-cnpg · opensuse · tumbleweed
- [kubectl-cnpg-fish-completion]Unknown
Source package: [kubectl-cnpg]
Details (1)
1.29.2-1.3· noarch · tumbleweedUnknown · Fixed:
1.30.1-1.1Version impact unknown
nvd · kubectl-cnpg · opensuse · tumbleweed
- [kubectl-cnpg-zsh-completion]Unknown
Source package: [kubectl-cnpg]
Details (1)
1.29.2-1.3· noarch · tumbleweedUnknown · Fixed:
1.30.1-1.1Version impact unknown
nvd · kubectl-cnpg · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_11686-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-84304]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-84304]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11740-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11742-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11881-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11911-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11925-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:22035-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:22135-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-84304]
[Debian Security Tracker] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]