What is CVE-2025-47269?

CVE-2025-47269 is a high-severity vulnerability in Coder Code-server, classified under Unintended Proxy or Intermediary (Confused Deputy). CVSS score: 8.3/10. Published 2025-05-09.

How severe is CVE-2025-47269?

High severity. CVSS v3 base score is 8.3 out of 10.

Vulnerability in Coder Code-server

CVE-2025-47269

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 validat…

EPSS: 0.360 (98.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L.

Affected products

Coder Code-server — versions < 4.99.4

Weakness classification (CWE)

CWE-441 — Unintended Proxy or Intermediary (Confused Deputy)

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2025-47269?: CVE-2025-47269 is a high-severity vulnerability in Coder Code-server, classified under Unintended Proxy or Intermediary (Confused Deputy). CVSS score: 8.3/10. Published 2025-05-09.
How severe is CVE-2025-47269?: High severity. CVSS v3 base score is 8.3 out of 10.