DEBIAN-CVE-2026-39155
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-39155
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-39155.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-39155
- Upstream
- Published
- 2026-07-23T21:17:04Z
- Modified
- 2026-09-14T17:03:32Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
Knot DNS before 3.4.10 and 3.5.x before 3.5.4 contains a vulnerability in mod-onlinesign where the next NSEC owner name can be computed incorrectly. This can create an overly broad authenticated denial interval, allowing downstream validating resolvers using aggressive negative caching to synthesize negative answers for legitimate names and causing resolver-side denial of service.
- References
Affected packages
Debian:12 / knot
Package
- Name
- knot
- Purl
- pkg:deb/debian/knot?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Affected versions
3.*
3.2.6-1
3.2.9-1
3.3.0-1
3.3.0-2
3.3.1-1
3.3.2-1
3.3.3-1
3.3.3-2
3.3.4-1
3.3.4-1.1~exp1
3.3.4-1.1
3.3.5-1
3.3.5-1.1
3.3.6-2
3.3.6-3
3.3.7-1
3.3.8-1
3.3.9-1
3.4.0-1
3.4.0-2
3.4.0-3
3.4.0-4
3.4.1-1
3.4.1-2
3.4.2-1
3.4.3-1
3.4.4-1
3.4.5-1
3.4.6-1
3.4.6-2
3.4.7-1
3.4.8-1
3.5.0-1
3.5.0-2
3.5.1-1
3.5.2-1
3.5.3-1
3.5.3-2
3.5.3-3
3.5.4-1
3.5.4-2
3.5.5-1
3.5.6-1
3.5.6-2
3.5.7-1
3.5.8-1
Debian:13 / knot
Package
- Name
- knot
- Purl
- pkg:deb/debian/knot?arch=source&distro=trixie
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:14 / knot
Package
- Name
- knot
- Purl
- pkg:deb/debian/knot?arch=source&distro=forky
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed3.5.4-1