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CVE-2026-44289

protobufjs: Denial of service through unbounded protobuf recursion

Published: May 13, 2026Updated: May 13, 2026 Sources: CVE List NVDCWE-674
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.3%
Top 76.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-674

Affected Products

protobuf.jsprotobufjs
Library
OSS Libraries / generic-library
protobufjsprotobufjs project
Library
OSS Libraries / generic-library
protobufjsoss-projectOSS Librariesaka protobuf.js, protobufjs
protobufjs projectoss-projectOSS Librariesaka protobufjs, protobufjs-cli

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Workaround Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-685m-2w69-288q
github.com

Timeline

Published
May 13, 2026
Last Updated
May 13, 2026
News mentions
1

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