CVE-2026-124848 - Incorrect default permissions on session transcripts and prompt history in Kiro CLI
CVE-2026-124848
Summary
Bulletin ID: 2026-116-AWS
Scope: AWS
Content Type: Important (requires attention)
Publication Date: 09/22/2026 13:00 PM PDT
Description:
s2n-quic is a Rust implementation of the QUIC protocol. We identified CVE-2026-94450, an issue with improper validation of the Destination Connection ID length when a server is configured to send Retry packets. s2n-quic 1.88.0 and earlier allow an unauthenticated user to shut down a server endpoint via a single crafted UDP datagram. No AWS services are affected by this issue, and customers of AWS services do not need to take action.
Only server endpoints specifically configured to issue Retry packets are affected.
Impacted versions: <= v1.88.0
Please refer to the article below for the most up-to-date and complete information related to this AWS Security Bulletin.
Products covered
A separate affected-products list was not included in the collected bulletin.
Remediation
Separate remediation guidance was not included in the collected bulletin.
CVEs in this advisory 1
Updates
- Published by AWS
The publication date reported by the vendor.
- Added to SecurityAlert
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- Confirmed at the source
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