DEBIAN-CVE-2026-118669
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-118669
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-118669.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-118669
- Upstream
- Published
- 2026-10-28T22:17:12Z
- Modified
- 2026-10-30T09:49:08Z
- Severity
-
- 8.4 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
- Summary
- [none]
- Details
-
OAuthLib is an implementation of the OAuth request-signing logic for Python 3.6+. Prior to 4.0.0, the client_credentials and Resource Owner Password Credentials token grant handlers can authenticate request.client as one confidential client while retaining an attacker-supplied request.client_id for validate_grant_type and validate_scopes. A lower-privilege authenticated client can therefore cause grant and scope authorization to use another client's identity when an application validator relies on the documented client_id argument, potentially issuing tokens with unauthorized grants or scopes. Validators that authorize exclusively from request.client may not be affected. This issue is fixed in version 4.0.0.
- References
Affected packages
Debian:12 / python-oauthlib
Package
- Name
- python-oauthlib
- Purl
- pkg:deb/debian/python-oauthlib?arch=source&distro=bookworm
Debian:13 / python-oauthlib
Package
- Name
- python-oauthlib
- Purl
- pkg:deb/debian/python-oauthlib?arch=source&distro=trixie
Debian:14 / python-oauthlib
Package
- Name
- python-oauthlib
- Purl
- pkg:deb/debian/python-oauthlib?arch=source&distro=forky