Use of GET Request Method With Sensitive Query Strings Affecting github.com/portainer/portainer/api/http/handler/websocket package, versions <2.33.8>=2.39.0 <2.39.2>=2.40.0 <2.41.0
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-GOLANG-GITHUBCOMPORTAINERPORTAINERAPIHTTPHANDLERWEBSOCKET-17710335
- published30 Jun 2026
- disclosed14 May 2026
- creditUnknown
Introduced: 14 May 2026
CVE-2026-44883 Â (opens in a new tab)How to fix?
Upgrade github.com/portainer/portainer/api/http/handler/websocket to version 2.33.8, 2.39.2, 2.41.0 or higher.
Overview
Affected versions of this package are vulnerable to Use of GET Request Method With Sensitive Query Strings in the extractBearerToken process. An attacker can gain unauthorized access to user accounts and perform actions with the privileges of the compromised user by obtaining a JWT token from logs, browser history, or HTTP referer headers where the token was exposed in the URL query parameter. This is only exploitable if an attacker is able to access logs, browser history, or referer headers containing the leaked token.
Workaround
This vulnerability can be mitigated by stripping the token query parameter at the reverse proxy, auditing logs for exposed tokens, and avoiding sharing URLs containing the token parameter.