Information Exposure Affecting druid package, versions <36.0.0-r15
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published4 May 2026
- disclosed18 Apr 2026
Introduced: 18 Apr 2026
NewCVE-2026-40490 (opens in a new tab)How to fix?
Upgrade Wolfi druid to version 36.0.0-r15 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream druid package and not the druid package as distributed by Wolfi.
See How to fix? for Wolfi relevant fixed versions and status.
The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. When redirect following is enabled (followRedirect(true)), versions of AsyncHttpClient prior to 3.0.9 and 2.14.5 forward Authorization and Proxy-Authorization headers along with Realm credentials to arbitrary redirect targets regardless of domain, scheme, or port changes. This leaks credentials on cross-domain redirects and HTTPS-to-HTTP downgrades. Additionally, even when stripAuthorizationOnRedirect is set to true, the Realm object containing plaintext credentials is still propagated to the redirect request, causing credential re-generation for Basic and Digest authentication schemes via NettyRequestFactory. An attacker who controls a redirect target (via open redirect, DNS rebinding, or MITM on HTTP) can capture Bearer tokens, Basic auth credentials, or any other Authorization header value. The fix in versions 3.0.9 and 2.14.5 automatically strips Authorization and Proxy-Authorization headers and clears Realm credentials whenever a redirect crosses origin boundaries (different scheme, host, or port) or downgrades from HTTPS to HTTP. For users unable to upgrade, set (stripAuthorizationOnRedirect(true)) in the client config and avoid using Realm-based authentication with redirect following enabled. Note that (stripAuthorizationOnRedirect(true)) alone is insufficient on versions prior to 3.0.9 and 2.14.5 because the Realm bypass still re-generates credentials. Alternatively, disable redirect following (followRedirect(false)) and handle redirects manually with origin validation.
References
- https://github.com/AsyncHttpClient/async-http-client/commit/6b2fbb7f8
- https://github.com/AsyncHttpClient/async-http-client/commit/ae557ad35246721c09dafb2976609cd0004e78ae
- https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.14.5
- https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.9
- https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-cmxv-58fp-fm3g