Arbitrary Code Injection Affecting python3-lib389 package, versions *


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

Social Trends
EPSS
0.7% (49th percentile)

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  • Snyk IDSNYK-CENTOS8-PYTHON3LIB389-15873526
  • published2 Apr 2026
  • disclosed27 Mar 2026

Introduced: 27 Mar 2026

CVE-2026-33940  (opens in a new tab)
CWE-94  (opens in a new tab)

How to fix?

There is no fixed version for Centos:8 python3-lib389.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-lib389 package and not the python3-lib389 package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

Handlebars provides the power necessary to let users build semantic templates. In versions 4.0.0 through 4.7.8, a crafted object placed in the template context can bypass all conditional guards in resolvePartial() and cause invokePartial() to return undefined. The Handlebars runtime then treats the unresolved partial as a source that needs to be compiled, passing the crafted object to env.compile(). Because the object is a valid Handlebars AST containing injected code, the generated JavaScript executes arbitrary commands on the server. The attack requires the adversary to control a value that can be returned by a dynamic partial lookup. Version 4.7.9 fixes the issue. Some workarounds are available. First, use the runtime-only build (require('handlebars/runtime')). Without compile(), the fallback compilation path in invokePartial is unreachable. Second, sanitize context data before rendering: Ensure no value in the context is a non-primitive object that could be passed to a dynamic partial. Third, avoid dynamic partial lookups ({{> (lookup ...)}}) when context data is user-controlled.

CVSS Base Scores

version 3.1