Protection Mechanism Failure Affecting github.com/pinchtab/pinchtab/cmd/pinchtab package, versions >=0.8.3 <0.8.5
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMPINCHTABPINCHTABCMDPINCHTAB-15809942
- published29 Mar 2026
- disclosed24 Mar 2026
- creditYesuhei
Introduced: 24 Mar 2026
CVE-2026-33622 (opens in a new tab)How to fix?
Upgrade github.com/pinchtab/pinchtab/cmd/pinchtab to version 0.8.5 or higher.
Overview
Affected versions of this package are vulnerable to Protection Mechanism Failure through the fn process in the /wait endpoint, which embeds user-supplied input directly into executable JavaScript without enforcing the intended security policy. An attacker can execute arbitrary JavaScript code in the browser tab context by sending crafted requests with a valid server API token, even when JavaScript evaluation is explicitly disabled by configuration. This is only exploitable if the attacker possesses authenticated API access and the deployment exposes tabs containing sensitive authenticated state.