Description
There exists a denial of service through Data corruption in gRPC-C++ - gRPC-C++ servers with transmit zero copy enabled through the channel arg GRPC_ARG_TCP_TX_ZEROCOPY_ENABLED can experience data corruption issues. The data sent by the application may be corrupted before transmission over the network thus leading the receiver to receive an incorrect set of bytes causing RPC requests to fail. We recommend upgrading past commit e9046b2bbebc0cb7f5dc42008f807f6c7e98e791
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| grpc | gRPC-C++ | 1.60.0 – ≤ 1.66.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | grpc | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | grpc | No fix yet | — |
| Ubuntu 26.04 LTS | grpc | No fix yet | — |
| Ubuntu 25.10 | grpc | No fix yet | — |
| Ubuntu 24.04 LTS | grpc | No fix yet | — |
| Ubuntu 22.04 LTS | grpc | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | grpc | No fix yet | — |
| Ubuntu 18.04 LTS | grpc | No fix yet | — |
| Ubuntu 16.04 LTS | grpc | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Satellite Capsule 6 | python-grpcio +1 | 1.68.1-1.el8pc | RHSA-2025:1019 |
| Red Hat Satellite 6 | python-grpcio +1 | 1.68.1-1.el8pc | RHSA-2025:1019 |
| Red Hat Ansible Automation Platform 2 | automation-controller-venv-tower | 4.6.6-1.el8ap | RHSA-2025:0340 |
| Red Hat Ansible Automation Platform 2 | automation-gateway-server | 2.5.20250115-1.el8ap | RHSA-2025:0340 |
| Red Hat Ansible Automation Platform 2 | python3.11-aiohttp | 3.10.11-1.el8ap | RHSA-2025:0340 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | grpc | 1.60.0-150600.15.3.1 | SUSE-SU-2024:4401-1 |
| SLES 15 SP6 | python-grpcio | 1.60.1-150600.16.8.1 | SUSE-SU-2024:4393-1 |
| SLES 15 SP5 | grpc | 1.60.0-150500.11.8.1 | SUSE-SU-2024:4436-1 |
| SLES 15 SP5 | python-grpcio | 1.60.1-150500.12.6.1 | SUSE-SU-2024:4429-1 |
| SLES 15 SP4 | grpc | 1.60.0-150400.8.8.1 | SUSE-SU-2024:4400-1 |
| SLES 15 SP4 | python-grpcio | 1.60.1-150400.9.10.1 | SUSE-SU-2024:4428-1 |
| SLES 3 | python-grpcio | 1.60.1-150500.12.6.1 | SUSE-SU-2024:4429-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | python-grpcio | 1.69.0-2.1 | openSUSE-SU-2025:15031-1 |
| openSUSE Leap 15.6 | grpc | 1.60.0-150600.15.3.1 | SUSE-SU-2024:4401-1 |
| openSUSE Leap 15.6 | python-grpcio | 1.60.1-150600.16.8.1 | SUSE-SU-2024:4393-1 |
| openSUSE Leap 15.5 | grpc | 1.60.0-150500.11.8.1 | SUSE-SU-2024:4436-1 |
| openSUSE Leap 15.5 | python-grpcio | 1.60.1-150500.12.6.1 | SUSE-SU-2024:4429-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | ecs-service-connect-agent | v1.34.4.2-1.amzn2023 | ALAS2023-2025-1357 |
| Amazon Linux 2023 | grpc +5 | 1.60.2-10.amzn2023.0.1 | ALAS2023-2025-819 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | grpc | 1.62.0-4 | — |
Advisories 12
- RHSA-2025:0340 Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update Red Hat Security Advisories (RHSA) · Oct 16, 2026
- RHSA-2025:1019 Red Hat Security Advisory: Satellite 6.16.2 Async Update Red Hat Security Advisories (RHSA) · Oct 14, 2026
- SUSE-SU-2024:4393-1 Security update for python-grpcio SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4436-1 Security update for grpc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4400-1 Security update for grpc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4428-1 Security update for python-grpcio SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2025:15031-1 python311-grpcio-1.69.0-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4401-1 Security update for grpc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:4429-1 Security update for python-grpcio SUSE / openSUSE Security Updates · Feb 4, 2026
- ALAS2023-2025-1357 Important: ecs-service-connect-agent security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jan 7, 2026
- WID-SEC-2025-0259 Red Hat Satellite: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Jan 5, 2026
- ALAS2023-2025-819 Moderate: grpc security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jan 24, 2025