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Advisory record · GHSA-hwg5-x759-7wjg

PraisonAI has Template Injection in Agent Tool Definitions

CVSS 8.8 HighEPSS 0.0057 · 47th percentile

Published by the GitHub Advisory Database at 8 Apr 2026, 19:21 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
praisonaiPyPI<4.5.1154.5.115
Identifiers
GHSA-hwg5-x759-7wjg · CVE-2026-39891 · PYSEC-2026-2917
Weakness (CWE)
CWE-94
Tags
Published
8 Apr 2026
Updated
13 Jul 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

PraisonAI versions before 4.5.115 are affected by a template injection flaw in the agent tool definitions, where user input passed to file-creation tools is rendered as template code rather than literal text. An attacker who can supply crafted agent instructions can execute arbitrary system commands with the privileges of the running process. Upgrade praisonai to version 4.5.115 or later.

Written 6 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.8 High 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0057, the 47th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:02 UTC First seen by agentprime
  2. 31 Oct 2026, 15:02 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.