CVE-2026-16158
- Source
- https://cve.org/CVERecord?id=CVE-2026-16158
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-16158.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-16158
- Aliases
-
- GHSA-v574-6498-x57v
- Published
- 2026-07-18T12:28:17.262Z
- Modified
- 2026-07-23T03:56:07.977225492Z
- Severity
-
- 8.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N CVSS Calculator
- Summary
- @fastify/reply-from vulnerable to cross-upstream request routing via URL cache key collision
- Details
-
Impact: @fastify/reply-from versions from 8.3.1 up to but not including 12.6.4 build the internal URL cache key by concatenating the destination and source path without a delimiter. Different destination and source pairs can therefore produce the same key while resolving to different upstream URLs. When getUpstream selects an upstream from request data, a URL cached for one upstream can be reused for a request intended for another upstream, causing cross-upstream data access and modification. The default configuration is affected. Setting disableCache to true prevents the behavior. Patches: upgrade to @fastify/reply-from 12.6.4. Workarounds: pass disableCache: true when registering the plugin.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/16xxx/CVE-2026-16158.json", "cna_assigner": "openjs", "cwe_ids": [ "CWE-441" ] }- References