CVE-2026-89332

MEDIUMPre-NVD 5.55.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

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, GitHub Security Advisory, a secondary CVSS source

Also known asEUVD-2026-76443 (ENISA EUVD) · GHSA-gpq4-73r8-h3fj (GitHub Security Advisories)Source: ENISA EUVD

5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.5Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

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
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity55% × 45%
Impact severity (EG Severity): CVSS 5.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
7th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (5.5): severity, escalated by confirmed exploitation. This CVE's 5.5 is its impact severity (EG Severity), not escalated.

EG Severity
5.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

The CVE record names the fixed release. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

September 11, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 11, 2026
Fix named in the CVE record.
Web page

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

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

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

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 54× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 118 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 18 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  2. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  3. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  4. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  5. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  6. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  7. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  8. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  9. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  10. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  11. 2026-10-25 13:53 UTCEG score recompute
  12. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  13. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  14. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  15. 2026-10-22 12:32 UTCEG score recompute
  16. 2026-10-22 12:31 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  17. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  18. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  19. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  20. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  21. 2026-10-18 03:02 UTCEG score recompute
  22. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  23. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  24. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  25. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.2% · 6th percentile
Show 75 more
  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  2. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  3. 2026-10-12 14:48 UTCEG score recompute
  4. 2026-10-12 09:11 UTCEG score recompute
  5. 2026-10-12 09:11 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  6. 2026-10-11 19:15 UTCEG score recompute
  7. 2026-10-11 16:32 UTCEG score recompute
  8. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  9. 2026-10-11 13:48 UTCEG score recompute
  10. 2026-10-11 10:03 UTCEG score recompute
  11. 2026-10-11 10:02 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  12. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  13. 2026-10-10 08:00 UTCEG score recompute
  14. 2026-10-10 08:00 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  15. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  16. 2026-10-09 07:08 UTCEG score recompute
  17. 2026-10-09 07:08 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  18. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-10-08 06:37 UTCEG score recompute
  20. 2026-10-08 06:37 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  21. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  22. 2026-10-07 06:07 UTCEG score recompute
  23. 2026-10-07 06:07 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  24. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  25. 2026-10-06 05:37 UTCEG score recompute
  26. 2026-10-06 05:37 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  27. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  28. 2026-10-05 05:03 UTCEG score recompute
  29. 2026-10-05 05:03 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  30. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  31. 2026-10-04 04:32 UTCEG score recompute
  32. 2026-10-04 04:32 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  33. 2026-10-03 04:02 UTCEG score recompute
  34. 2026-10-03 04:02 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  35. 2026-10-02 03:26 UTCEG score recompute
  36. 2026-10-02 03:25 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  37. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  38. 2026-10-01 02:18 UTCEG score recompute
  39. 2026-10-01 02:18 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  40. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  41. 2026-09-30 01:48 UTCEG score recompute
  42. 2026-09-30 01:48 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  43. 2026-09-28 22:44 UTCEG score recompute
  44. 2026-09-28 22:44 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  45. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  46. 2026-09-27 22:09 UTCEG score recompute
  47. 2026-09-27 22:09 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  48. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  49. 2026-09-26 21:38 UTCEG score recompute
  50. 2026-09-26 21:37 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  51. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  52. 2026-09-25 21:07 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  53. 2026-09-24 18:44 UTCEG score recompute
  54. 2026-09-24 18:44 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  55. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  56. 2026-09-23 18:14 UTCEG score recompute
  57. 2026-09-23 18:14 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  58. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  59. 2026-09-22 17:44 UTCEG score recompute
  60. 2026-09-22 17:44 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  61. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  62. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  63. 2026-09-21 17:03 UTCEG score recompute
  64. 2026-09-21 17:02 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  65. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  66. 2026-09-20 16:09 UTCEG score recompute
  67. 2026-09-20 16:09 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  68. 2026-09-19 15:38 UTCEG score recompute
  69. 2026-09-19 15:38 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  70. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  71. 2026-09-18 15:05 UTCEG score recompute
  72. 2026-09-18 15:05 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5
  73. 2026-09-17 19:32 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  74. 2026-09-17 14:32 UTCEG score recompute
  75. 2026-09-17 14:32 UTCGHSA enrichmentGHSA-gpq4-73r8-h3fj · GitHub CVSS 5.5

Frequently asked(5)

What is CVE-2026-89332?
CVE-2026-89332 is a medium-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-89332 published?
The CVE record for CVE-2026-89332 was published on September 11, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 16, 2026; the record at its source may have been updated since.
Is CVE-2026-89332 actively exploited?
CVE-2026-89332 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (7th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-89332?
CVE-2026-89332 has a CVSS base score of 5.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-89332?
The CVE record for CVE-2026-89332 names the fix: "To remediate this issue, users should upgrade to Kiro IDE version 0.8.135 or later." The vendor advisories EchelonGraph has for CVE-2026-89332 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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