Medium severity4.8NVD Advisory· Published Apr 8, 2026· Updated Apr 21, 2026
CVE-2026-39410
CVE-2026-39410
Description
Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.12, a discrepancy between browser cookie parsing and parse() handling allows cookie prefix protections to be bypassed. Cookie names that are treated as distinct by the browser may be normalized to the same key by parse(), allowing attacker-controlled cookies to override legitimate ones. This vulnerability is fixed in 4.12.12.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
hononpm | < 4.12.12 | 4.12.12 |
Affected products
23- osv-coords22 versionspkg:apk/chainguard/gemini-clipkg:apk/chainguard/honopkg:apk/chainguard/hono-adapter-mqttpkg:apk/chainguard/hono-clipkg:apk/chainguard/hono-compatpkg:apk/chainguard/hono-service-authpkg:apk/chainguard/hono-service-command-routerpkg:apk/chainguard/hono-service-device-registry-jdbcpkg:apk/chainguard/kibana-9.1pkg:apk/chainguard/kibana-9.1-iamguardedpkg:apk/chainguard/kibana-9.2pkg:apk/chainguard/kibana-9.2-iamguardedpkg:apk/chainguard/kibana-9.3pkg:apk/chainguard/kibana-9.3-iamguardedpkg:apk/chainguard/langfuse-3-workerpkg:apk/chainguard/langfuse-fips-3-workerpkg:apk/chainguard/librechatpkg:apk/chainguard/opensearch-dashboards-2pkg:apk/chainguard/opensearch-dashboards-2-fipspkg:apk/wolfi/langfuse-3-workerpkg:apk/wolfi/opensearch-dashboards-2pkg:npm/hono
< 0.37.0-r0+ 21 more
- (no CPE)range: < 0.37.0-r0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 0
- (no CPE)range: < 9.1.10-r10
- (no CPE)range: < 9.1.10-r10
- (no CPE)range: < 9.2.7-r3
- (no CPE)range: < 9.2.7-r3
- (no CPE)range: < 9.3.3-r0
- (no CPE)range: < 9.3.3-r0
- (no CPE)range: < 3.164.0-r5
- (no CPE)range: < 3.164.0-r3
- (no CPE)range: < 0.8.4-r5
- (no CPE)range: < 2.19.5-r8
- (no CPE)range: < 2.19.5-r7
- (no CPE)range: < 3.164.0-r5
- (no CPE)range: < 2.19.5-r8
- (no CPE)range: < 4.12.12
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-r5rp-j6wh-rvv4ghsaADVISORY
- github.com/honojs/hono/commit/cc067c85592415cb1880ad3c61ed923472452ec0nvdThird Party AdvisoryWEB
- github.com/honojs/hono/security/advisories/GHSA-r5rp-j6wh-rvv4nvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-39410ghsaADVISORY
- github.com/honojs/hono/releases/tag/v4.12.12nvdRelease NotesWEB
News mentions
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