Critical

GitLab Web IDE token theft and private repository access via incomplete validation

IdentifiersCVE-2025-7659CWE-20

CVE-2025-7659 is a high-severity vulnerability in GitLab Community Edition (CE) and Enterprise Edition (EE) Web IDE caused by incomplete validation. It affects all versions from 18.2 before 18.6.6, 18.7 before 18.7.4, and 18.8 before 18.8.4. According to GitLab, an unauthenticated attacker could abuse this validation flaw in the Web IDE to steal tokens and then use those tokens to access private repositories. The available source material does not provide the exact vulnerable function or code path beyond identifying the Web IDE and the root cause as incomplete validation.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows an unauthenticated attacker to steal authentication tokens and use them to gain unauthorized access to private repositories. This creates a high confidentiality impact through exposure of private source code and repository contents, and a high integrity impact because stolen tokens may permit actions within the scope of the compromised token. The provided material does not indicate a direct availability impact.

Mitigation

If you can’t patch tonight, do this now.

If immediate patching is not possible, reduce exposure of the Web IDE to untrusted users and networks, for example by restricting access through VPN, reverse-proxy access controls, or IP allowlisting. Monitor for suspicious Web IDE activity and anomalous token usage, and investigate for possible historical compromise because applying the patch does not invalidate previously stolen tokens or otherwise remediate prior unauthorized access. Where operationally feasible, review and rotate potentially exposed tokens.

Remediation

Patch, then assume compromise.

Upgrade GitLab CE/EE to a fixed version. GitLab states the issue is remediated in 18.6.6, 18.7.4, and 18.8.4. Self-managed installations should upgrade immediately to the appropriate patched release for their deployment branch. GitLab.com is already patched, and GitLab Dedicated customers do not need to take action according to the provided advisory material.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType

GitLabGitlabapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

10 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

10 SOURCESView more in app

cyber security newsNews

Feb 22, 2026

Cybersecurity News Weekly: PayPal Breach, Chrome 0-Day, BeyondTrust RCE Exploit, and More

A high-severity vulnerability in GitLab (Community and Enterprise editions) affecting the Web IDE.

cyber security newsNews

Feb 11, 2026

GitLab Patches Multiple Vulnerabilities That Enables DoS and Cross-site Scripting Attacks

A high-severity GitLab Web IDE access control/validation flaw enabling unauthenticated token theft and unauthorized access to private repositories.

security online infoNews

Feb 11, 2026

GitLab Patch Alert: High-Severity Web IDE Flaw Exposes Private Repos

High-severity GitLab Web IDE validation flaw that could allow unauthenticated token theft and subsequent access to private repositories.

gitlab releasesNews

Feb 10, 2026

GitLab Patch Release: 18.8.4, 18.7.4, 18.6.6 | GitLab

Incomplete validation in GitLab Web IDE that could allow an unauthenticated attacker to steal tokens and access private repositories.

What this page doesn’t show

The version that knows your environment.

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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity5

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES

MITRE CVE

cve.org · CVE-2025-7659

NVD

nvd.nist.gov/vuln/detail/CVE-2025-7659

MITRE CWE · CWE-20

cwe.mitre.org

Vendor Advisory

about.gitlab.com/releases/2026/02/10/patch-release-gitlab-18-8-4-released

Permissions Required

hackerone.com/reports/3234976