https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-05T22:53:41.669287+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2021-22569 CVE-2021-22569 — Denial of Service of protobuf-java parsing procedure 2026-10-05T22:53:42.038008+00:00

Affected: Google LLC protobuf-java, Google LLC protobuf-kotlin, Google LLC google-protobuf [JRuby Gem]

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.

 https://cve.radiocsirt.org/vuln/ghsa-735f-pc8j-v9w8 GHSA-735f-pc8j-v9w8 — protobuf-java has potential Denial of Service issue 2026-10-05T22:53:42.038074+00:00

Affected: Maven: com.google.protobuf:protobuf-java, Maven: com.google.protobuf:protobuf-javalite, Maven: com.google.protobuf:protobuf-kotlin, Maven: com.google.protobuf:protobuf-kotlin-lite, RubyGems: google-protobuf

### Summary When parsing unknown fields in the Protobuf Java Lite and Full library, a maliciously crafted message can cause a StackOverflow error and lead to a program crash.

Reporter: Alexis Challande, Trail of Bits Ecosystem Security Team <ecosystem@trailofbits.com>

Affected versions: This issue affects all versions of both the Java full and lite Protobuf runtimes, as well as Protobuf for Kotlin and JRuby, which themselves use the Java Protobuf runtime.

### Severity [CVE-2024-7254](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-7254) **High** CVSS4.0 Score 8.7 (NOTE: there may be a delay in publication) This is a potential Denial of Service. Parsing nested groups as unknown fields with DiscardUnknownFieldsParser or Java Protobuf Lite parser, or against Protobuf map fields, creates unbounded recursions that can be abused by an attacker.

### Proof of Concept For reproduction details, please refer to the unit tests (Protobuf Java [LiteTest](https://github.com/protocolbuffers/protobuf/blob/a037f28ff81ee45ebe008c64ab632bf5372242ce/java/lite/src/test/java/com/google/protobuf/LiteTest.java) and [CodedInputStreamTest](https://github.com/protocolbuffers/protobuf/blob/a037f28ff81ee45ebe008c64ab632bf5372242ce/java/core/src/test/java/com/google/protobuf/CodedInputStreamTest.java)) that identify the specific inputs that exercise this parsing weakness.

### Remediation and Mitigation We have been working diligently to address this issue and have released a mitigation that i…