CVSS 3.1
5.5 mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HCVE-2021-22569
Medium (5.5). EPSS 1.8% chance of exploitation in the next 30 days. Fixed in com.google.protobuf:protobuf-java 3.16.1, 3.18.2, 3.19.2.
An issue in protobuf-java allowed the interleaving of com.google.protobuf.UnknownFieldSet fields in such a way that would be processed out of order. A small malicious payload can occupy the parser for several minutes by creating large numbers of short-lived objects that cause frequent, repeated pauses. We recommend upgrading libraries beyond the vulnerable versions.
Severity
- EPSS
- 1.8% chance of exploitation in the next 30 days; higher than 78% of CVEs (scores of 2026-10-31)
- CWE
- CWE-696
- Published
- Modified
- Record from
- the NVD, synced
Affected
- google:google-protobuf
- google:protobuf-java
- google:protobuf-kotlin
- oracle:communications_cloud_native_core_console
- oracle:communications_cloud_native_core_network_repository_function
- oracle:communications_cloud_native_core_policy
- oracle:spatial_and_graph_mapviewer
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-wrvw-hg22-4m67 | Maven | com.google.protobuf:protobuf-java | <3.16.1 | 3.16.1 |
| GHSA-wrvw-hg22-4m67 | RubyGems | google-protobuf | <3.19.2 | 3.19.2 |
| GHSA-wrvw-hg22-4m67 | Maven | com.google.protobuf:protobuf-java | >=3.18.0 <3.18.2 | 3.18.2 |
| GHSA-wrvw-hg22-4m67 | Maven | com.google.protobuf:protobuf-java | >=3.19.0 <3.19.2 | 3.19.2 |
| GHSA-wrvw-hg22-4m67 | Maven | com.google.protobuf:protobuf-kotlin | >=3.18.0 <3.18.2 | 3.18.2 |
| GHSA-wrvw-hg22-4m67 | Maven | com.google.protobuf:protobuf-kotlin | >=3.19.0 <3.19.2 | 3.19.2 |