CVE-2025-55750

6.5 MEDIUM

📋 TL;DR

This vulnerability in Gitpod's Bitbucket OAuth integration allowed attackers to craft malicious links that could expose valid Bitbucket access tokens via URL fragments when clicked by authenticated users. The issue affected Gitpod Classic and Gitpod Classic Enterprise users with Bitbucket integration enabled. Attackers could potentially gain unauthorized access to Bitbucket repositories and resources.

💻 Affected Systems

Products:
  • Gitpod Classic
  • Gitpod Classic Enterprise
Versions: All versions before main-gha.33628
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects Bitbucket OAuth integration. GitHub and GitLab integrations are not affected. Requires user interaction (clicking malicious link).

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers gain full access to victim's Bitbucket repositories, allowing code theft, modification, or injection of malicious code into production systems.

🟠

Likely Case

Attackers access private repositories, steal intellectual property, or compromise development pipelines.

🟢

If Mitigated

With proper access controls and monitoring, impact is limited to specific Bitbucket resources the victim had access to.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: LOW

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Requires social engineering to get authenticated users to click crafted links. Limited to Bitbucket integration only.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: main-gha.33628 and later

Vendor Advisory: https://github.com/gitpod-io/gitpod/security/advisories/GHSA-63fw-3jgp-2p2g

Restart Required: Yes

Instructions:

1. Update Gitpod to version main-gha.33628 or later. 2. Restart Gitpod services. 3. Verify Bitbucket OAuth integration functions correctly.

🔧 Temporary Workarounds

Disable Bitbucket OAuth Integration

all

Temporarily disable Bitbucket OAuth integration until patched

# Configuration depends on Gitpod deployment method
# Consult Gitpod documentation for disabling Bitbucket OAuth

🧯 If You Can't Patch

  • Implement strict access controls on Bitbucket repositories
  • Monitor Bitbucket access logs for suspicious activity
  • Educate users about phishing risks with OAuth links

🔍 How to Verify

Check if Vulnerable:

Check Gitpod version: if before main-gha.33628 and Bitbucket OAuth is enabled, system is vulnerable

Check Version:

Check Gitpod dashboard or deployment configuration for version information

Verify Fix Applied:

Verify Gitpod version is main-gha.33628 or later and test Bitbucket OAuth flow

📡 Detection & Monitoring

Log Indicators:

  • Unusual Bitbucket OAuth redirect patterns
  • Multiple failed OAuth attempts from same user
  • Access tokens appearing in URL fragments in logs

Network Indicators:

  • Suspicious redirects to external domains during OAuth flow
  • Unusual traffic patterns to Bitbucket API

SIEM Query:

source="gitpod" AND ("oauth" OR "bitbucket") AND ("redirect" OR "token" OR "fragment")

🔗 References

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