DEBIAN-CVE-2025-61921

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Source
https://security-tracker.debian.org/tracker/CVE-2025-61921
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-61921.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2025-61921
Upstream
Published
2025-10-10T20:15:38Z
Modified
2025-10-11T10:18:27.123409Z
Summary
[none]
Details

Sinatra is a domain-specific language for creating web applications in Ruby. In versions prior to 4.2.0, there is a denial of service vulnerability in the If-Match and If-None-Match header parsing component of Sinatra, if the etag method is used when constructing the response. Carefully crafted input can cause If-Match and If-None-Match header parsing in Sinatra to take an unexpected amount of time, possibly resulting in a denial of service attack vector. This header is typically involved in generating the ETag header value. Any applications that use the etag method when generating a response are impacted. Version 4.2.0 fixes the issue.

References

Affected packages

Debian:11 / ruby-sinatra

Package

Name
ruby-sinatra
Purl
pkg:deb/debian/ruby-sinatra?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.0.8.1-2
2.0.8.1-2+deb11u1
2.2.2-1

3.*

3.0.3-1
3.0.5-1
3.0.5-2
3.0.5-3
3.2.0-1

4.*

4.1.1-1
4.1.1-2
4.1.1-3
4.1.1-4
4.1.1-5
4.1.1-6

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / ruby-sinatra

Package

Name
ruby-sinatra
Purl
pkg:deb/debian/ruby-sinatra?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.0.5-3
3.2.0-1

4.*

4.1.1-1
4.1.1-2
4.1.1-3
4.1.1-4
4.1.1-5
4.1.1-6

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / ruby-sinatra

Package

Name
ruby-sinatra
Purl
pkg:deb/debian/ruby-sinatra?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.1.1-5
4.1.1-6

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / ruby-sinatra

Package

Name
ruby-sinatra
Purl
pkg:deb/debian/ruby-sinatra?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.1.1-5
4.1.1-6

Ecosystem specific 

{
    "urgency": "not yet assigned"
}