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Vulnerabilities

Vulnerability · CVE-2025-47269

code-server runs VS Code on any machine anywhere through browser access.

Published May 9, 2025 · catalog updated May 10, 2025 · code-server runs VS Code

Check this week

CVE-2025-47269 is not in CISA KEV. FIRST estimates a 44.54% chance of exploitation in the next 30 days. Check whether you run code-server runs VS Code.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (code-server runs VS Code).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
44.54%
Remediation
Version ranges on file
Affected products
vendor coder code-server < 4.99.4

code-server runs VS Code on any machine anywhere through browser access. Prior to version 4.99.4, a maliciously crafted URL using the proxy subpath can result in the attacker gaining access to the session token. Failure to properly validate the port for a proxy request can result in proxying to an arbitrary domain. The malicious URL would be proxied to where the attacker could exfiltrate a user's session token. Any user who runs code-server with the built-in proxy enabled and clicks on maliciously crafted links that go to their code-server instances with reference to /proxy. Normally this is u

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor coder code-server < 4.99.4< 4.99.4

How to fix CVE-2025-47269

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-47269 is not in CISA KEV. FIRST estimates a 44.54% chance of exploitation in the next 30 days. Check whether you run code-server runs VS Code.

Which versions are affected?

Compare what you have installed with coder code-server < 4.99.4 < 4.99.4. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 44.54%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 9, 2025 · EUVD

    Detected

    code-server runs VS Code on any machine anywhere through browser access. Prior to version 4.99.4, a maliciously crafted URL using the proxy subpath can result in the attacker gaining access to the session token. Failure to properly validate the port for a proxy request can result in proxying to an arbitrary domain. The malicious URL would be proxied to where the attacker could exfiltrate a user's

  2. May 10, 2025 · EUVD

    Updated

    code-server runs VS Code on any machine anywhere through browser access. Prior to version 4.99.4, a maliciously crafted URL using the proxy subpath can result in the attacker gaining access to the session token. Failure to properly validate the port for a proxy request can result in proxying to an arbitrary domain. The malicious URL would be proxied to where the attacker could exfiltrate a user's

Sources

  • CVE.orgVulnerability recordCVE-2025-47269

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-47269

    30-day exploitation probability 44.5%

    first.org
  • EUVDVulnerability recordEUVD-2025-14189

    code-server runs VS Code on any machine anywhere through browser access. Prior to version 4.99.4, a maliciously crafted URL using the proxy subpath can result in the attacker gaining access to the session token. Failure to properly validate the port for a proxy request can result

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.