DEBIAN-CVE-2026-92091
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-92091
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-92091.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-92091
- Upstream
- Published
- 2026-09-16T08:16:40Z
- Modified
- 2026-09-17T21:00:23Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A flaw was found in jwcrypto. The JWK.import_key() function validates the key_ops JWK member for duplicate values using an algorithm with O(n^2) time complexity, and the length of key_ops is not bounded. A remote, unauthenticated attacker can supply a JWK with a large key_ops array to an application that passes attacker-controlled key material to a public key-import API (reachable via ECDH-ES key agreement, OIDC dynamic client registration, DPoP, or ACME account key registration, among others) to consume excessive CPU time, resulting in a denial of service.
- References
Affected packages
Debian:12 / python-jwcrypto
Package
- Name
- python-jwcrypto
- Purl
- pkg:deb/debian/python-jwcrypto?arch=source&distro=bookworm
Debian:13 / python-jwcrypto
Package
- Name
- python-jwcrypto
- Purl
- pkg:deb/debian/python-jwcrypto?arch=source&distro=trixie
Debian:14 / python-jwcrypto
Package
- Name
- python-jwcrypto
- Purl
- pkg:deb/debian/python-jwcrypto?arch=source&distro=forky