CVE-2026-89332

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreHIGH confidence

Score 5.5 from GitHub Security Advisory published 2026-09-11. a secondary CVSS source baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Inclusion of functionality from an untrusted control sphere in the Kiro Powers feature in Amazon Kiro IDE before version 0.8.135 might allow remote unauthenticated actors to obtain sensitive information from a developer workstation. Crafted repository content can cause the agent to modify the workspace settings file, which redirects the Kiro Powers registry request to an actor controlled endpoint and sends workspace data to that endpoint when the Powers panel is opened.

To remediate this issue, users should upgrade to Kiro IDE version 0.8.135 or later. Users who opened a project in an earlier version should also rotate any credentials that were present in that project.

CVSS v3
5.5
EG Score
5.5(high)
EG Risk
25(Track)
EG Risk 25/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

September 11, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 11, 2026
No patch confirmed yet.
generic

CVE-2026-89332 - Kiro IDE Sensitive Workspace Data Exfiltration via Agent-Written Workspace Configuration

https://aws.amazon.com/security/security-bulletins/2026-111-aws/
generic

Web Tools, Subagents, Contextual Hooks, and Per-File Code Review - Kiro

https://kiro.dev/changelog/ide/0-8/#patch-0-8-135

Vendor Advisories for CVE-2026-89332(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 20× in last 7d / 24× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 15:05 UTCEG score recompute
  3. 2026-09-18 15:05 UTCGHSA enrichment
  4. 2026-09-17 19:32 UTCEPSS rescore
  5. 2026-09-17 14:32 UTCEG score recompute
  6. 2026-09-17 14:32 UTCGHSA enrichment
  7. 2026-09-16 14:09 UTCEPSS rescore
  8. 2026-09-16 14:01 UTCEG score recompute
  9. 2026-09-16 14:01 UTCGHSA enrichment
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-15 21:39 UTCEG score recompute
  12. 2026-09-15 21:38 UTCGHSA enrichment
  13. 2026-09-15 03:12 UTCEPSS rescore
  14. 2026-09-14 21:08 UTCGHSA enrichment
  15. 2026-09-13 21:46 UTCEG score recompute
  16. 2026-09-13 21:46 UTCGHSA enrichment
  17. 2026-09-13 16:48 UTCEPSS rescore
  18. 2026-09-12 21:16 UTCEG score recompute
  19. 2026-09-12 21:16 UTCGHSA enrichment
  20. 2026-09-12 15:02 UTCEPSS rescore
  21. 2026-09-11 20:46 UTCEG score recompute
  22. 2026-09-11 19:44 UTCEG score recompute
  23. 2026-09-11 19:19 UTCEG score recompute
  24. 2026-09-11 19:18 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-89332?
CVE-2026-89332 is a medium vulnerability published on September 11, 2026. Inclusion of functionality from an untrusted control sphere in the Kiro Powers feature in Amazon Kiro IDE before version 0.8.135 might allow remote unauthenticated actors to obtain sensitive information from a developer workstation. Crafted repository content can cause the agent to modify the…
When was CVE-2026-89332 disclosed?
CVE-2026-89332 was first published in the National Vulnerability Database on September 11, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-89332 actively exploited?
CVE-2026-89332 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 93.1% of all scored CVEs.
What is the CVSS score of CVE-2026-89332?
CVE-2026-89332 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-89332?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-89332, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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