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CVE-2026-95985: Kiro IDE Allows Agentic Writes to Global Configurations While Working in Untrusted Workspaces

ROUTINE

Telemetry drift only. No threshold crossed and no authority ruling changed.

CVE record, CISA KEV and EPSS as of 2026-10-18.

CVEs like this one computed, by meaning

What to do now held facts and links

  1. Upgrade to 1.0.242 or later CVE record
  2. Record your decision, dated and frozen with today's evidence: patch by a date · mitigated by a compensating control · deferred · accepted the risk · not affected
  3. Check your version against the ranges this record publishes.

What it is stated by the CNA

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.

weakness
CWE-829 Inclusion of functionality from untrusted control sphere; CWE-349 Acceptance of extraneous untrusted data with trusted data
affected
Amazon Kiro IDE
versions
No affected-version range in held sources.
fixed in
1.0.242
severity
8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
assigned by
AMZN
published
2026-09-24

check us aws.amazon.com kiro.dev

Exploit code held, dated

exploit code
None held in the PoC-in-GitHub feed. A public repository changes this brief.

Outside the record researched, cited

This section reads the record's references and adds cited findings from outside it. It needs an account. Everything above is held facts and is complete without it.

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What would change this brief held, dated

CISA KEV
Not listed in the catalogue we hold. A listing changes this brief.
exploit probability
0.00 on 2026-09-28 (FIRST's EPSS, a probability and not evidence of exploitation). Next band line: 10% (0.10). Crossing a line changes this brief.
fix
Held: 1.0.242. A newer fix from the CNA or OSV changes this brief.

Watch this CVE What counts as a move

How to check this

Every value above is held with two dates: when it was true upstream (as_of) and when we recorded it (tx_from). Re-derive the exploit probability as it stood on any date:

SELECT value, source, source_version, as_of, tx_from
FROM volatile_valid_as_of('CVE-2026-95985', '2026-10-31T23:59:59.999999Z', now());