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Medium severity5.3GHSA Advisory· Published Jun 22, 2026· Updated Jun 22, 2026

CVE-2026-54287

CVE-2026-54287

Description

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.25, on AWS Lambda, the ALB single-header response and the VPC Lattice v2 response join multiple Set-Cookie headers into one comma-separated value. Because commas also appear inside cookie attributes (for example Expires dates), clients cannot split the value back into individual cookies and silently drop or misparse them. This vulnerability is fixed in 4.12.25.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
hononpm
< 4.12.254.12.25

Affected products

18

Patches

Vulnerability mechanics

References

3

News mentions

1