CVE-2025-21620

Source
https://nvd.nist.gov/vuln/detail/CVE-2025-21620
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21620.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-21620
Aliases
Published
2025-01-06T22:26:40Z
Modified
2025-10-22T18:44:53.182751Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
Deno's authorization headers not dropped when redirecting cross-origin
Details

Deno is a JavaScript, TypeScript, and WebAssembly runtime with secure defaults. When you send a request with the Authorization header to one domain, and the response asks to redirect to a different domain, Deno'sfetch() redirect handling creates a follow-up redirect request that keeps the original Authorization header, leaking its content to that second domain. This vulnerability is fixed in 2.1.2.

Database specific
{
    "cwe_ids": [
        "CWE-200"
    ]
}
References

Affected packages

Git / github.com/denoland/deno

Affected ranges

Type
GIT
Repo
https://github.com/denoland/deno
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed

Affected versions

std/0.*

std/0.34.0
std/0.35.0
std/0.36.0
std/0.37.0
std/0.38.0
std/0.39.0
std/0.40.0
std/0.41.0
std/0.42.0
std/0.50.0
std/0.51.0
std/0.52.0
std/0.53.0
std/0.54.0
std/0.55.0
std/0.56.0
std/0.57.0
std/0.58.0
std/0.59.0
std/0.60.0
std/0.61.0
std/0.62.0
std/0.63.0
std/0.64.0
std/0.65.0
std/0.66.0
std/0.67.0
std/0.68.0
std/0.69.0
std/0.70.0
std/0.71.0
std/0.72.0
std/0.73.0
std/0.74.0
std/0.75.0
std/0.76.0
std/0.77.0
std/0.78.0
std/0.79.0
std/0.80.0
std/0.81.0
std/0.82.0
std/0.83.0
std/0.84.0
std/0.85.0

v0.*

v0.0.1
v0.0.3
v0.1.0
v0.1.1
v0.1.10
v0.1.11
v0.1.12
v0.1.2
v0.1.3
v0.1.4
v0.1.5
v0.1.6
v0.1.7
v0.1.8
v0.1.9
v0.10.0
v0.11.0
v0.12.0
v0.13.0
v0.14.0
v0.15.0
v0.16.0
v0.17.0
v0.18.0
v0.19.0
v0.2.0
v0.2.1
v0.2.10
v0.2.11
v0.2.2
v0.2.3
v0.2.4
v0.2.5
v0.2.6
v0.2.7
v0.2.8
v0.2.9
v0.20.0
v0.21.0
v0.22.0
v0.23.0
v0.24.0
v0.25.0
v0.26.0
v0.27.0
v0.28.0
v0.28.1
v0.29.0
v0.3.0
v0.3.1
v0.3.10
v0.3.11
v0.3.2
v0.3.3
v0.3.4
v0.3.5
v0.3.6
v0.3.7
v0.3.8
v0.3.9
v0.30.0
v0.30.1
v0.31.0
v0.32.0
v0.33.0
v0.34.0
v0.35.0
v0.36.0
v0.37.0
v0.37.1
v0.38.0
v0.39.0
v0.4.0
v0.40.0
v0.41.0
v0.42.0
v0.5.0
v0.6.0
v0.7.0
v0.8.0
v0.9.0

v1.*

v1.0.0
v1.0.0-rc1
v1.0.0-rc2
v1.0.0-rc3
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.1.0
v1.1.1
v1.1.2
v1.1.3
v1.10.0
v1.10.1
v1.10.3
v1.11.0
v1.11.1
v1.11.2
v1.12.0
v1.12.1
v1.12.2
v1.13.0
v1.13.1
v1.13.2
v1.14.0
v1.14.1
v1.14.2
v1.15.0
v1.15.1
v1.15.2
v1.15.3
v1.16.0
v1.16.1
v1.16.2
v1.17.0
v1.18.0
v1.19.0
v1.2.0
v1.2.1
v1.2.2
v1.2.3
v1.20.0
v1.20.1
v1.21.0
v1.22.0
v1.23.0
v1.24.0
v1.25.0
v1.26.0
v1.27.0
v1.28.0
v1.29.0
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.30.0
v1.31.0
v1.32.0
v1.33.0
v1.34.0
v1.35.0
v1.36.0
v1.37.0
v1.38.0
v1.39.0
v1.4.0
v1.4.1
v1.4.2
v1.4.3
v1.4.4
v1.4.5
v1.4.6
v1.40.0
v1.41.0
v1.42.0
v1.43.0
v1.43.1
v1.44.0
v1.45.0
v1.46.0
v1.5.0
v1.5.1
v1.5.2
v1.5.3
v1.5.4
v1.6.0
v1.6.1
v1.6.2
v1.6.3
v1.7.0
v1.7.1
v1.7.2
v1.7.3
v1.7.4
v1.8.0
v1.8.1
v1.8.2
v1.9.0
v1.9.1
v1.9.2

v2.*

v2.0.0
v2.1.0
v2.1.1