CVE-2026-9255
Last modified
CVE-2026-9255 is a high-severity vulnerability rated 8.4/10 on the CVSS scale. Missing input source validation in the tool authorization prompt in Kiro CLI before 1.28.0 allows a local attacker to execute arbitrary tools, including shell commands, without user approval by crafting content that is piped to kiro-cli via stdin. We recommend you to upgrade to kiro-cli version 1.28.0 or later.. EPSS estimates a 0.12% chance of exploitation in the next 30 days.
Description
Missing input source validation in the tool authorization prompt in Kiro CLI before 1.28.0 allows a local attacker to execute arbitrary tools, including shell commands, without user approval by crafting content that is piped to kiro-cli via stdin. We recommend you to upgrade to kiro-cli version 1.28.0 or later.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Amazon | Kiro Cli | < 1.28.0 |
References
- https://kiro.dev/changelog/cli/1-28/Release Notes
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-9255?
How severe is CVE-2026-9255?
How do I fix CVE-2026-9255?
How Strix Helps
- Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-9246Improper access control in the entry documentation and attac…4.3
- CVE-2026-9247Insufficient logging in the entry export feature in Devoluti…2.4
- CVE-2026-9248Authorization bypass in the entry duplication feature in Dev…2.6
- CVE-2026-9249Unverified password change in Devolutions Server allows an a…3.1
- CVE-2026-9251Missing authorization in the entry status management feature…5.4
- CVE-2026-9253The WP Cost Estimation & Payment Forms Builder (E&P Forms) p…7.2
- CVE-2026-9256NGINX Plus and NGINX Open Source have a vulnerability in the…9.2
- CVE-2026-9258Improper validation of SSH host keys in Canon EOS Network Se…9.8
- CVE-2026-9259Improper validation of server certificates in Canon EOS Netw…9.8
- CVE-2026-9260Use of hard-coded cryptographic keys in Canon EOS Network Se…9.8
- CVE-2026-9261Use of weak SSH cryptographic algorithms in Canon EOS Networ…9.8
- CVE-2026-9262Use of a non-secure protocol as the default FTP configuratio…7.5
Are you affected by CVE-2026-9255?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST