protobufjs: Denial of service through unbounded protobuf recursion
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.6%
exploitation probability
0.6%top 56% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
protobufjs · protobuf.jsReferences
https://access.redhat.com/errata/RHSA-2026:42815https://access.redhat.com/security/cve/CVE-2026-44289https://bugzilla.redhat.com/show_bug.cgi?id=2477130https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-685m-2w69-288qhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44289.json