CVE-2026-44293Disclosure(protobufjs_project / protobufjs)

LOWCVSS 8.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.5.6 and 8.0.2, protobufjs generated JavaScript for toObject conversion could include an unsafe expression derived from a schema-controlled bytes field default value. A crafted descriptor with a non-string default value for a bytes field could cause attacker-controlled code to be emitted into the generated conversion function. This vulnerability is fixed in 7.5.6 and 8.0.2.

protobufjs_project CVEs Back to dashboard

0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-66ff-xgx4-vchm

Other references

Weakness type (CWE)

CWE-94

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

protobufjs

Threat summary

1 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
1 total mentions across 1 day

Affected systems

Vendors

protobufjs_project

Products

protobufjs

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Disclosure

1100.0%

Full discourse1 post

Cyera@cyera_io137d
Disclosure
The breakdown of the 6 CVEs discovered and responsibly disclosed by our team: • CVE-2026-44284 & 44285 (CRITICAL): Prototype pollution & RCE via schema loading/code generation • CVE-2026-44287, 44289, 44291 (HIGH): DoS & Prototype pollution during decoding • CVE-2026-44293 (MED): Unsafe descriptor handling
Post summary
The text announces the discovery and responsible disclosure of six new CVEs, providing severity rankings and brief technical descriptions of the exploitation vectors.
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795 followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	protobufjs_project	protobufjs	-	node.js	-

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