How severe is CVE-2026-95985?

CVE-2026-95985 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-95985 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-95985?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-95985 published?

CVE-2026-95985 was published on 2026-09-24.

CVE-2026-95985

CVE-2026-95985 is a high-severity vulnerability with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-349.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.6
EPSS exploit prediction: 0% (3rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-349
Published: 2026-09-24
Last modified: 2026-09-24

Description

The file write tool in Amazon Kiro IDE versions before 1.0.242 might allow remote unauthenticated actors to inject crafted instructions into the agent's context. When a user runs the agent in a crafted repository as an untrusted workspace, sending any message can cause agent modifications to auto-loaded global configuration paths. We recommend you upgrade to Kiro IDE version 1.0.242 or later. Users who ran the agent in an untrusted workspace on an earlier version should also review the global Kiro configuration directory (~/.kiro) for entries they did not create.

Frequently asked questions

What is CVE-2026-95985?: The file write tool in Amazon Kiro IDE versions before 1.0.242 might allow remote unauthenticated actors to inject crafted instructions into the agent's context. When a user runs the agent in a crafted repository as an untrusted workspace, sending any message can cause agent modifications to auto-loaded global configuration paths. We recommend you upgrade to Kiro IDE version 1.0.242 or later. Users who ran the agent in an untrusted workspace on an earlier version should also review the global Kiro configuration directory (~/.kiro) for entries they did not create.
How severe is CVE-2026-95985?: CVE-2026-95985 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-95985 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (3rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-95985?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-95985 published?: CVE-2026-95985 was published on 2026-09-24.

References

Other CWE-349 vulnerabilities

CVE-2026-42960 — Critical (CVSS 10.0): NLnet Labs Unbound up to and including version 1.25.0 is vulnerable to poisoning via promiscuous records for the…
CVE-2026-41120 — Critical (CVSS 9.8): Dell Wyse Management Suite, versions prior to WMS 5.5 HF1, contain an Acceptance of Extraneous Untrusted Data With…
CVE-2026-50252 — Critical (CVSS 9.3): In NLnet Labs Unbound 1.4.22 up to and including 1.25.1, UDP source port is randomized and intended to serve as a…
CVE-2026-45602 — Critical (CVSS 9.1): No cwe for this issue in Windows DHCP Server allows an unauthorized attacker to perform tampering over a network.
CVE-2026-48100 — High (CVSS 8.7): Payy is an Ethereum L2 zk-rollup for privacy preserving and regulatory compliant transactions. Prior to version 1.3.0,…
CVE-2025-5994 — High (CVSS 8.7): A multi-vendor cache poisoning vulnerability named 'Rebirthday Attack' has been discovered in caching resolvers that…

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