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CVE-2026-59877

nvd nist
Published: Jul 8, 2026Modified: Jul 10, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

protobufjs compiles protobuf definitions into JavaScript (JS) functions. Prior to 7.6.5 and 8.6.6, protobufjs parsed option names by advancing through schema tokens until reaching an = token without checking for end of input, so a crafted .proto schema that opens an option declaration and ends prematurely can cause parse, Root.load, or Root.loadSync to loop indefinitely. This issue is fixed in versions 7.6.5 and 8.6.6.

Affected (2)

Protobufjs Project
1 product
Protobufjs
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Protobufjs
Before 7.6.5
Protobufjs
From 8.0.0 to 8.6.6

Related CWEs

CWE-835
Loop with Unreachable Exit Condition ('Infinite Loop')
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

References (6)

Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
Issue TrackingPatch
Source: security-advisories@github.com
ProductRelease Notes
Source: security-advisories@github.com
ProductRelease Notes
Source: security-advisories@github.com
MitigationVendor Advisory

Timeline

No history available yet.