CVE-2025-55750 Gitpod Classic Affected by Bitbucket OAuth Token Exposure via Redirect Fragment

Medium 6.5 Published Updated

Authenticated users clicking crafted links may expose Bitbucket OAuth tokens, allowing attackers to access private repositories.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-55750?

CVE-2025-55750 is a medium-severity vulnerability in gitpod-io gitpod, published on 29 Aug 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Gitpod is a developer platform for cloud development environments. In versions before main-gha.33628 for both Gitpod Classic and Gitpod Classic Enterprise, OAuth integration with Bitbucket in certain conditions allowed a crafted link to expose a valid Bitbucket access token via the URL fragment when clicked by an authenticated user. This resulted from how Bitbucket returned tokens and how Gitpod handled the redirect flow. The issue was limited to Bitbucket (GitHub and GitLab integrations were not affected), required user interaction, and has been mitigated through redirect handling and OAuth logic hardening. The issue was resolved in main-gha.33628 and later. There are no workarounds.

Weakness: CWE-201

Which versions are affected by CVE-2025-55750?

How do I fix CVE-2025-55750?

No fix has been published for CVE-2025-55750 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-55750 being exploited?

There is no known exploitation of CVE-2025-55750 in the wild and no public exploit code.

Sources

Also known as GHSA-63fw-3jgp-2p2g.

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