CVE-2026-5758

MEDIUM
MEDIUM Priority: 0.04 BB Relevance: 73/100
Published: 2026-04-15 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: Low
I: None
A: Low

Description

JavaScript is vulnerable to prototype pollution in Mafintosh's protocol-buffers-schema Version 3.6.0, where an attacker may alter the application logic, bypass security checks, cause a DoS or achieve remote code execution.

Bug Bounty Relevance

73 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

EPSS — Exploitation Probability

0.56%
Raw Score 0.005550
Percentile 46.8%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00555
2026-11-12
0.00555
2026-11-10
0.00534
2026-11-09
0.00534
2026-11-08
0.00534
2026-11-07
0.00534
2026-11-06
0.00534
2026-11-05
0.00534
2026-11-04
0.00534
2026-11-03
0.00534
2026-11-02
0.00534
2026-11-01
0.00534
2026-10-31
0.00534
2026-10-30
0.00534
2026-10-29
0.00534
2026-10-28
0.00534

Intelligence Sources

nvd ref →