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Google: dev-python/oauthlib: security update to 19506.549.7

medium Tenable Cloud Security Plugin ID 475150

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - OAuthLib is an implementation of the OAuth request-signing logic for Python 3.6+. From 0.6.1 until 4.0.0,
 OAuthLib's RevocationEndpoint in oauthlib/oauth2/rfc6749/endpoints/revocation.py reflects an unvalidated
 callback request parameter into success and error response bodies when enable_jsonp=True. The callback can
 come from the query string or request body and is used without restricting it to a legal JavaScript
 function name. A browser application that loads the revocation response as trusted JSONP and permits
 attacker influence over callback can therefore execute attacker-controlled JavaScript in the including
 application's origin, with access to its DOM and script-accessible data. The feature is disabled by
 default, so only deployments that explicitly enable JSONP are affected. This issue is fixed in version
 4.0.0. (CVE-2026-49264)

Solution

Update the dev-python/oauthlib library and its related packages to version 19506.549.7 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-129.oval.xml.tar.gz

Plugin Details

Severity: Medium

ID: 475150

Version: Revision 1.1

Type: Local

Published: 10/16/2026

Updated: 10/16/2026

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 10.27

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2026-49264

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 9/29/2026

Reference Information

CVE: CVE-2026-49264