CVE-2026-116630 (GCVE-0-2026-116630)

Vulnerability from cvelistv5 – Published: 2026-11-06 10:13 – Updated: 2026-11-10 17:41
VLAI
Title
undici vulnerable to cross-user information disclosure via cross-origin redirect revalidation
Summary
undici is an HTTP client for Node.js. In versions 7.0.0 through 7.30.1 and 8.0.0 through 8.12.3, when an Agent composes the redirect and shared cache interceptors, a cached response that is revalidated with a conditional request can be validated by a 304 Not Modified from a different origin. When the origin that stored the response redirects the conditional revalidation request to another origin, the redirect handler strips origin-bound credential headers but not the cache-generated If-None-Match or If-Modified-Since validators, so the redirect destination receives the original origin's validator and undici treats its 304 as successful revalidation of the stored representation. As a result, a shared cache can serve the original origin's stored authenticated response, including one gated by Authorization, to a later unauthenticated 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
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-10 17:41 UTC
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 127 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
undici undici Affected: 7.0.0 , < 7.30.2 (semver)
Unaffected: 7.30.2 (semver)
Affected: 8.0.0 , < 8.12.4 (semver)
Unaffected: 8.12.4 (semver)
guessed Create a notification for this product.
Credits
shirabe0x05 ffasterss mcollina UlisesGascon
Show details on NVD website
To clipboard 

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