GHSA-87m9-rv8p-rgmg
go-grpc-compression has a zstd decompression bombing vulnerability
GHSA-87m9-rv8p-rgmg is a high vulnerability (CVSS 7.5) in github.com/mostynb/go-grpc-compression, published June 10, 2024. No source lists public exploit code. Fixed in github.com/mostynb/go-grpc-compression 1.2.3.
- Severity
- 7.5 HighCVSS 3.1, GitHub Advisories
- Exploit chance
- UnscoredNo EPSS score yet
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
1.2.3github.com/mostynb/go-grpc-compression
Description
Impact
A malicious user could cause a denial of service (DoS) when using a specially crafted gRPC request. The decompression mechanism for zstd did not respect the limits imposed by gRPC, allowing rapid memory usage increases.
Versions v1.1.4 through to v1.2.2 made use of the Decoder.DecodeAll function in github.com/klauspost/compress/zstd to decompress data provided by the peer. The vulnerability is exploitable only by attackers who can send gRPC payloads to users of github.com/mostynb/go-grpc-compression/zstd or github.com/mostynb/go-grpc-compression/nonclobbering/zstd.
Patches
Version v1.2.3 of github.com/mostynb/go-grpc-compression avoids the issue by not using the Decoder.DecodeAll function in github.com/klauspost/compress/zstd.
All users of github.com/mostynb/go-grpc-compression/zstd or github.com/mostynb/go-grpc-compression/nonclobbering/zstd in the affected versions should update to v1.2.3.
Workarounds
Other compression formats were not affected, users may consider switching from zstd to another format without upgrading to a newer release.
References
This issue was uncovered during a security audit performed by Miroslav Stampar of 7ASecurity, facilitated by OSTIF, for the OpenTelemetry project.
https://opentelemetry.io/blog/2024/cve-2024-36129 https://github.com/open-telemetry/opentelemetry-collector/security/advisories/GHSA-c74f-6mfw-mm4v
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/mostynb/go-grpc-compressionGo | 1.1.4 up to 1.2.3 | 1.2.3 |
What each source reports
GitHub Advisories Score used
go-grpc-compression has a zstd decompression bombing vulnerability
Impact
A malicious user could cause a denial of service (DoS) when using a specially crafted gRPC request. The decompression mechanism for zstd did not respect the limits imposed by gRPC, allowing rapid memory usage increases.
Versions v1.1.4 through to v1.2.2 made use of the Decoder.DecodeAll function in github.com/klauspost/compress/zstd to decompress data provided by the peer. The vulnerability is exploitable only by attackers who can send gRPC payloads to users of github.com/mostynb/go-grpc-compression/zstd or github.com/mostynb/go-grpc-compression/nonclobbering/zstd.
Patches
Version v1.2.3 of github.com/mostynb/go-grpc-compression avoids the issue by not using the Decoder.DecodeAll function in github.com/klauspost/compress/zstd.
All users of github.com/mostynb/go-grpc-compression/zstd or github.com/mostynb/go-grpc-compression/nonclobbering/zstd in the affected versions should update to v1.2.3.
Workarounds
Other compression formats were not affected, users may consider switching from zstd to another format without upgrading to a newer release.
References
This issue was uncovered during a security audit performed by Miroslav Stampar of 7ASecurity, facilitated by OSTIF, for the OpenTelemetry project.
https://opentelemetry.io/blog/2024/cve-2024-36129 https://github.com/open-telemetry/opentelemetry-collector/security/advisories/GHSA-c74f-6mfw-mm4v
- Record
GHSA-87m9-rv8p-rgmg- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
OSV
go-grpc-compression has a zstd decompression bombing vulnerability
Impact
A malicious user could cause a denial of service (DoS) when using a specially crafted gRPC request. The decompression mechanism for zstd did not respect the limits imposed by gRPC, allowing rapid memory usage increases.
Versions v1.1.4 through to v1.2.2 made use of the Decoder.DecodeAll function in github.com/klauspost/compress/zstd to decompress data provided by the peer. The vulnerability is exploitable only by attackers who can send gRPC payloads to users of github.com/mostynb/go-grpc-compression/zstd or github.com/mostynb/go-grpc-compression/nonclobbering/zstd.
Patches
Version v1.2.3 of github.com/mostynb/go-grpc-compression avoids the issue by not using the Decoder.DecodeAll function in github.com/klauspost/compress/zstd.
All users of github.com/mostynb/go-grpc-compression/zstd or github.com/mostynb/go-grpc-compression/nonclobbering/zstd in the affected versions should update to v1.2.3.
Workarounds
Other compression formats were not affected, users may consider switching from zstd to another format without upgrading to a newer release.
References
This issue was uncovered during a security audit performed by Miroslav Stampar of 7ASecurity, facilitated by OSTIF, for the OpenTelemetry project.
https://opentelemetry.io/blog/2024/cve-2024-36129 https://github.com/open-telemetry/opentelemetry-collector/security/advisories/GHSA-c74f-6mfw-mm4v
- Record
GHSA-87m9-rv8p-rgmg- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-400
- Updated
- 2026-11-02
OSVGO-2024-2911No score
go-grpc-compression has a zstd decompression bombing vulnerability in github.com/mostynb/go-grpc-compression
go-grpc-compression has a zstd decompression bombing vulnerability in github.com/mostynb/go-grpc-compression
- Record
GO-2024-2911- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.