CVE-2026-84888

MEDIUM 4.3

RightNow-AI OpenFang tool_runner.rs shell_exec memory allocation

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

A weakness has been identified in RightNow-AI OpenFang up to 0.6.9. This vulnerability affects the function shell_exec of the file crates/openfang-runtime/src/tool_runner.rs. This manipulation causes uncontrolled memory allocation. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

CWE	CWE-789 CWE-400
Vendor	rightnow-ai
Product	openfang
Published	Sep 2, 2026
Last Updated	Sep 3, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

RightNow-AI / OpenFang

0.6.0 0.6.1 0.6.2 0.6.3 0.6.4 0.6.5 0.6.6 0.6.7 0.6.8 0.6.9

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/398138 vuldb.com: https://vuldb.com/vuln/398138/cti vuldb.com: https://vuldb.com/cve/CVE-2026-84888 vuldb.com: https://vuldb.com/submit/886466 github.com: https://github.com/outlookgp/CVE/tree/main/OpenFang_ShellExec_Output_Buffer_DoS_Report

Credits

🔍 outlookgp (VulDB User) VulDB CNA Team