Google::Auth for Perl (2 CVEs)
Affects versions 0.11 through 0.12; no fixed versions or exploitation stated.
OAuth state bypass in Google::Auth Perl gcloud-auth login
Google::Auth for Perl versions 0.11 through 0.12 accepts authorization code from any local process as gcloud-auth login callback does not check OAuth state. A local attacker can submit an authorization code for their own Google account. The CLI exchanges it and stores the refresh token as the user's credentials, allowing the attacker to act as the victim.
What to do: Upgrade Google::Auth Perl to a fixed version. Apply Google's update for CVE-2026-74760.
| Product | Affected |
|---|---|
| Google::Auth | 0.11 through 0.12 |
Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.
Google::Auth versions from 0.11 through 0.12 for Perl accept an authorization code from any local process because the gcloud-auth login callback does not check the OAuth state. The gcloud-auth login and application-default login commands send a state parameter with the authorization request, then take the code from the first request to reach their loopback listener without comparing the returned state. A local attacker can submit an authorization code for their own Google account. The CLI exchanges it and stores the refresh token as the user's credentials, so the user's tools then act as the attacker's account.
Affects versions 0.11 through 0.12; no fixed versions or exploitation stated.
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