CVE-2026-44289: CWE-674: Uncontrolled Recursion in protobufjs protobuf.js
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.
AI Analysis
Technical Summary
protobufjs, a JavaScript library for compiling protobuf definitions, had a vulnerability (CWE-674) where decoding nested protobuf data could recurse without a depth limit. This uncontrolled recursion could cause the JavaScript call stack to be exhausted, leading to denial of service. The flaw affected versions prior to 7.5.6 and versions from 8.0.0 up to but not including 8.0.2. The vulnerability was addressed in versions 7.5.6 and 8.0.2.
Potential Impact
An attacker can craft a protobuf binary payload that triggers uncontrolled recursion during decoding, exhausting the JavaScript call stack and causing a denial of service (application crash or unresponsiveness). There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
Upgrade protobufjs to version 7.5.6 or later, or 8.0.2 or later, where this vulnerability is fixed. No other mitigations are indicated. Patch status is confirmed by the vendor advisory stating the fix is included in these versions.
CVE-2026-44289: CWE-674: Uncontrolled Recursion in protobufjs protobuf.js
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
protobufjs, a JavaScript library for compiling protobuf definitions, had a vulnerability (CWE-674) where decoding nested protobuf data could recurse without a depth limit. This uncontrolled recursion could cause the JavaScript call stack to be exhausted, leading to denial of service. The flaw affected versions prior to 7.5.6 and versions from 8.0.0 up to but not including 8.0.2. The vulnerability was addressed in versions 7.5.6 and 8.0.2.
Potential Impact
An attacker can craft a protobuf binary payload that triggers uncontrolled recursion during decoding, exhausting the JavaScript call stack and causing a denial of service (application crash or unresponsiveness). There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
Upgrade protobufjs to version 7.5.6 or later, or 8.0.2 or later, where this vulnerability is fixed. No other mitigations are indicated. Patch status is confirmed by the vendor advisory stating the fix is included in these versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-05T17:39:31.112Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a049717cbff5d8610e00327
Added to database: 5/13/2026, 3:21:59 PM
Last enriched: 5/13/2026, 3:37:08 PM
Last updated: 5/14/2026, 6:52:38 AM
Views: 10
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