CVE-2025-65200

CRITICAL
INFO Priority: 0.03 BB Relevance: 69/100
Published: 2026-10-22 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Changed
C: High
I: High
A: High

Description

An issue was discovered in localstack 4.9.2 allowing attackers to execute arbitrary code via crafted content hosted on a web-accessable URL and when passed said URL in the the templateURL to the _localstack/cloudformation/deploy endpoint, the hosted content can get executed in the context of the docker container.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
n/a n/a n/a
n/a n/a n/a

Bug Bounty Relevance

69 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

9.6 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

EPSS — Exploitation Probability

0.35%
Raw Score 0.003460
Percentile 28.0%
Date 2026-10-28

Intelligence Sources

mitre ref →
nvd ref →