CVE-2021-22569
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Denial of Service of protobuf-java parsing procedure
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
protobuf-java
- Vendor
- Google LLC
- Product
- protobuf-java
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| unspecified | affected | custom | 3.16.1 | Unavailable | None listed |
| unspecified | affected | custom | 3.18.2 | Unavailable | None listed |
| unspecified | affected | custom | 3.19.2 | Unavailable | None listed |
protobuf-kotlin
- Vendor
- Google LLC
- Product
- protobuf-kotlin
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| unspecified | affected | custom | 3.18.2 | Unavailable | None listed |
| unspecified | affected | custom | 3.19.2 | Unavailable | None listed |
google-protobuf [JRuby Gem]
- Vendor
- Google LLC
- Product
- google-protobuf [JRuby Gem]
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| unspecified | affected | custom | 3.19.2 | Unavailable | None listed |