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VulnerabilityPublished

CVE-2026-89332: AWS Kiro IDE · Untrusted Functionality Inclusion

Affects AWS Kiro IDESource CVE Database V5

0

Not known to be exploited · CVSS 5.5 Medium : upgrade to 0.8.135 when convenient.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-09-11.

Patch
Available – fixed in 0.8.135
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade AWS Kiro IDE to 0.8.135.

Affected software

ProductAffectedFixed in
AWSKiro IDEAffected
  • <0.8.135
Fixed in
  • 0.8.135

AI-suggested

A patch is available in AWS Kiro IDE version 0.8.135. Users should upgrade to this version or later to remediate the vulnerability. Additionally, users who opened projects in earlier versions should rotate any credentials that were present in those projects to prevent misuse of leaked information.

Description

CVE-2026-89332 is a vulnerability in AWS Kiro IDE versions before 0.8.135 where the Kiro Powers feature includes functionality from an untrusted control sphere. This flaw allows remote unauthenticated actors to cause the IDE agent to modify workspace settings, redirecting registry requests to attacker-controlled endpoints and leaking workspace data. The issue is fixed in version 0.8.135. Users who opened projects with earlier versions should rotate any credentials present in those projects.

Reports on CVE-2026-89332

References

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