Public proof of conceptFix available

CVE-2026-34935

Q: Is CVE-2026-34935 actively exploited?

A proof-of-concept exploit exists for CVE-2026-34935, but active exploitation has not been confirmed at this time.

Q: What is the CVSS score for CVE-2026-34935?

CVE-2026-34935 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

A public proof of concept exists; no exploitation attested.

Published2026-04-03
Fixed in4.5.69
WeaknessCWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

PraisonAI is a multi-agent teams system. From version 4.5.15 to before version 4.5.69, the --mcp CLI argument is passed directly to shlex.split() and forwarded through the call chain to anyio.open_process() with no validation, allowlist check, or sanitization at any hop, allowing arbitrary OS command execution as the process user. This issue has been patched in version 4.5.69.

Timeline

dates in UTC

2026-04-0323:17CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-25 15:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-34935?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-34935?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Praison praisonai

Branch	Affected	Fixed in	Source
4.5	≥ 4.5.15, < 4.5.69	4.5.69	NVD · OSV

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Praison praisonai to 4.5.69

Advisories and patches

github.comPatch
github.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVE recordread 2026-10-23
CISA-ADPSSVC decisionpoc2026-04-06
OpenCVESSVC decisionpoc—
CNACVSS 3.19.8read 2026-10-23
CNAweakness (CWE)CWE-78read 2026-10-23
FIRST EPSSEPSS score0.8 %2026-10-25
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2026-04-03
Last Modified: 2026-07-24
NVD status: Analyzed

Frequently asked questions

What is CVE-2026-34935?

Is CVE-2026-34935 actively exploited?

A proof-of-concept exploit exists for CVE-2026-34935, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-34935?

CVE-2026-34935 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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