Capgo CLI through 7.98.2 Excessive Permissions via Overpermissioned Play Console Service Account

published 2026-09-26 43 d ago modified 2026-10-05 34 d ago also EUVD-2026-87715

cvss: 3.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 22%
public exploits: 0; none known

Capgo CLI (npm package @capgo/cli) through 7.98.2 is affected by an over-permissioned service account in its Android onboarding flow. When onboarding via Google OAuth, the CLI invites the generated Google Play service account with the account-wide Play Console permission CAN_MANAGE_DRAFT_APPS_GLOBAL (passed as developerAccountPermissions in the Android Publisher API User create request), even though the user-facing flow states the service account is invited into a single confirmed app with release-only permissions. As a result, anyone who obtains the generated service account key (PLAY_CONFIG_JSON) can create, edit, and delete draft apps across the entire Google Play developer account rather than being limited to the selected package. No patched version was available at the time of publication.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 34 d ago (2026-10-05)

Exploit prediction

0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/Cap-go/capgo.app/security/advisories/GHSA-wf94-285x-4cgj referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
CNA	3.1	3.8	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L
CNA	4.0	5.1	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/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

Affected products

Cap-go @capgo/cli

Classification

Weakness

CWE-269 Improper Privilege Management

References

github.com /Cap-go/capgo.app/security/advisories/GHSA-wf94-285x-4cgj
vendor-advisory, exploit
vulncheck.com /advisories/capgo-cli-through-7.98.2-excessive-permissions-via-overpermissioned-play-console-service-account
third-party-advisory

Sources

CVE List CVE-2026-100620
NVD CVE-2026-100620

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary