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CVE-2026-124848VulnerabilityPublished

Incorrect Default File Permissions

Source GCVE Database

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Authoritative record:CVE-2026-124848· Medium 5.5

Not known to be exploited · CVSS 5.5 Medium : upgrade to 2.27.0 when convenient.

Data as of 10 Nov 2026, 22:34 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (AMZN)CVSS 3.15.5
CNA (AMZN)CVSS 4.06.8
Patch
Available – fixed in 2.27.0
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: 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 10 Nov 2026.

What to do

Upgrade Kiro CLI to 2.27.0.

Affected software

ProductAffectedFixed in
AmazonKiro CLIAffected
  • >=1.16.0 <2.27.0
Fixed in
  • 2.27.0

Description

Incorrect default file permissions in Kiro CLI (formerly Amazon Q Developer CLI) before version 2.27.0 on macOS and Linux might allow other local users on the same host to read a user's session transcripts and prompt history, including any credentials or source code they contain. The CLI created its local session storage files with permissions that made them readable by all local users. To remediate this issue, users should upgrade to Kiro CLI version 2.27.0 or later and launch it once. Users who ran Amazon Q Developer CLI 1.16.0 through 1.19.x should also delete the ~/.aws/amazonq/.cli_bash_history file or restrict it to the owner.

References

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