HOMEVULNERABILITIESCVE-2026-44289
HIGH

CVE-2026-44289

CWE-674Published: May 13, 2026· Updated: May 13, 2026

7.5
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:13.7th

Official 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.

NVD Source

Technical Analysis

CVE-2026-44289 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

protobufjs_project1 product
protobufjs
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

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

All References (1)

→
https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-685m-2w69-288qMitigation · Vendor Advisory

Quick Facts

CVE IDCVE-2026-44289
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-674
CISA KEVNo
EPSS (30d)0.04%
Affected1 vendor
PublishedMay 13, 2026

Related CVEs (CWE-674)

CVE-2026-25971
9.8
CVE-2026-40324
9.1
CVE-2026-25048
8.7
CVE-2026-41673
8.7
CVE-2026-8936
8.2
CVE-2026-42039
7.5

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-44289 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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