Session Fixation Affecting org.http4s:http4s-client_2.12 package, versions [,0.23.35)
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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Test your applications- Snyk IDSNYK-JAVA-ORGHTTP4S-19869262
- published16 Sept 2026
- disclosed15 Sept 2026
- creditUnknown
Introduced: 15 Sep 2026
NewCVE-2026-69214 (opens in a new tab)How to fix?
Upgrade org.http4s:http4s-client_2.12 to version 0.23.35 or higher.
Overview
Affected versions of this package are vulnerable to Session Fixation through the CookieJar middleware accepting and storing a response cookie's Domain attribute without verifying that it matches the host that supplied the cookie or rejecting public suffixes. An attacker can cause cookies to be sent to unintended domains by planting a cookie for another domain, potentially enabling session fixation or overwriting security-sensitive cookies.