Description
protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs could recurse without a depth limit while decoding nested protobuf data. This affected both skipping unknown group fields and generated decoding of nested message fields. A crafted protobuf binary payload could cause the JavaScript call stack to be exhausted during decoding. This vulnerability is fixed in 7.5.6 and 8.0.2.
Affected products
protobufjs_project: protobufjs
References6
- github.com/protobufjs/protobuf.js/security/advisories/GHSA-685m… MitigationVendor Advisory
- access.redhat.com/errata/RHSA-2026:42815
- access.redhat.com/errata/RHSA-2026:60520
- access.redhat.com/security/cve/CVE-2026-44289
- bugzilla.redhat.com/show_bug.cgi?id=2477130
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44289…
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 1% percentile: 51 · as of 14 November 2026
- CWE
- CWE-674CWE-606
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.