CVE-2026-34938: PraisonAI is a multi-agent teams system

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CRITICAL 10.0REMOTEUPGRADE

CVE-2026-34938 is a critical-severity flaw (CVSS 10.0) affecting praisonaiagents. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PraisonAI is a multi-agent teams system. Prior to version 1.5.90, execute_code() in praisonai-agents runs attacker-controlled Python inside a three-layer sandbox that can be fully bypassed by passing a str subclass with an overridden startswith() method to the _safe_getattr wrapper, achieving arbitrary OS command execution on the host. This issue has been patched in version 1.5.90.

Why this priority

Critical severity
EPSS top 4%: very likely to be exploited
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	13.2% (top 4%)
CISA exploited list	No
Weakness	CWE-693
Published	2026-04-03
Last modified	2026-07-24

Publisher (CNA): GitHub, Inc. · Vendor: praison

Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-03 23:17 UTCPublished CVE record published
2026-07-24 22:10 UTCUpdated Record last modified

praison praisonaiagents UPGRADE

Affected: < 1.5.90

Fixed in: 1.5.90

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy praisonaiagents || rpm -q praisonaiagents || praisonaiagents --version

2. UPGRADE to 1.5.90 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade praisonaiagents

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade praisonaiagents

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Python (pip) · praisonaiagents · FIXED · 1.5.90 · vulnerable: <= 1.5.89 · source

pip install --upgrade "praisonaiagents>=1.5.90" pip show praisonaiagents

Fedora 46 · python-googleapis-common-protos · FIXED · 1.75.5-1.fc46~bootstrap · FEDORA-2026-d911c4c4e6 · source

sudo dnf upgrade --advisory=FEDORA-2026-d911c4c4e6

Fedora ELN · see advisory · FIXED · FEDORA-2026-e3987c278f · source

sudo dnf upgrade --advisory=FEDORA-2026-e3987c278f

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/MervinPraison/PraisonAI/security/advisories/GHSA-6vh2-h83c-9294

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-34938?

praisonaiagents: upgrade to 1.5.90. Exact commands for each OS are on this page.

Is CVE-2026-34938 being exploited?

CVE-2026-34938 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-34938 affect?

CVE-2026-34938 affects praisonaiagents. Severity is critical (CVSS 10.0). PraisonAI is a multi-agent teams system. Prior to version 1.5.90, execute_code() in praisonai-agents runs attacker-controlled Python inside a three-layer sandbox that can be fully bypassed by passing a str subclass with an overridden starts

How urgent is CVE-2026-34938?

Priority 72/100. Critical severity; EPSS top 4%: very likely to be exploited; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Software pages

Python vulnerabilities

Related CVEs

CVE-2026-40288 CRITICAL 9.8 UPGRADE UPGRADE PraisonAI is a multi-agent teams system
CVE-2026-40289 CRITICAL 9.1 UPGRADE UPGRADE PraisonAI is a multi-agent teams system
CVE-2026-40111 HIGH 8.8 UPGRADE PraisonAIAgents is a multi-agent teams system
CVE-2026-40287 HIGH 8.4 UPGRADE UPGRADE PraisonAI is a multi-agent teams system
CVE-2026-40152 MEDIUM 5.3 UPGRADE PraisonAIAgents is a multi-agent teams system

References

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