CVE-2026-116592 (GCVE-0-2026-116592)

Vulnerability from cvelistv5 – Published: 2026-11-06 10:05 – Updated: 2026-11-06 10:05
VLAI
Title
undici vulnerable to cache poisoning and cross-user disclosure via intermediate redirect hops
Summary
undici is an HTTP client for Node.js. In versions 7.30.1 and 8.12.2 through 8.12.3, when an originless Agent composes the redirect and shared cache interceptors, undici decides whether to store the final response under the original request key by inspecting only the final redirect hop, which bypasses the earlier fix for CVE-2026-109829 that compared only the initial and final origins. A redirect that bounces through an untrusted origin and returns to the trusted origin is still cached under the trusted key, an intermediate hop's Vary is dropped so a response that varies on Authorization or Cookie can be served to a different user, and an intermediate hop's no-cache or default-uncacheable status is ignored so a non-storable redirect is laundered into a cacheable entry. An attacker who controls a redirect target from a trusted URL can poison the cached entry for that URL or have a private, per-user response served to a later caller. The issue is fixed in undici 7.30.2 and 8.12.4, and users should upgrade to one of those versions or later. As a workaround, compose the interceptors as cache then redirect, use per-origin dispatchers and cache stores, or disable shared caching on redirect-capable requests.
Severity
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE
  • CWE-346 - Origin Validation Error
  • CWE-524 - Use of Cache Containing Sensitive Information
Assigner
openjs CNA under the redhat root
CNA scorecard C 65/100 over 131 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
undici undici Affected: 7.30.1 , < 7.30.2 (semver)
Unaffected: 7.30.2 (semver)
Affected: 8.12.2 , < 8.12.4 (semver)
Unaffected: 8.12.4 (semver)
guessed Create a notification for this product.
Credits
Panelv4 mcollina UlisesGascon w116tjb gooyong-sec
Show details on NVD website
To clipboard 

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