Cross-site Scripting (XSS) Affecting ggshield package, versions <1.55.0-r3


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.31% (23rd percentile)

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  • Snyk IDSNYK-WOLFILATEST-GGSHIELD-20384840
  • published2 Oct 2026
  • disclosed13 Oct 2026

Introduced: 2 Oct 2026

NewCVE-2026-49264  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Wolfi ggshield to version 1.55.0-r3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ggshield package and not the ggshield package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1