EUVD-2026-38371Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/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
Network-reachable /updates path with low-privileged authenticated channel operator (PR:L); integrity-high because attacker controls code shipped to devices, availability-low, no confidentiality impact.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/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
Lifecycle Timeline
2DescriptionCVE.org
Capgo before 12.128.12 fails to filter deleted app versions when joining channels during /updates resolution, allowing deleted bundles to remain selectable. Attackers can continue deploying deleted bundles to devices by exploiting the missing app_versions.deleted filter in channel version joins.
AnalysisAI
Logic flaw in Capgo before 12.128.12 lets authenticated attackers continue serving soft-deleted application bundles to end-user devices because the /updates endpoint omits an app_versions.deleted filter when joining channels. Affected operators of the Capgo live-update service (a CodePush-style OTA platform for Capacitor mobile apps) can have purged bundles re-selected and pushed downstream, undermining rollback and removal workflows. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated Capgo account with privileges to manage channels and bundles (CVSS PR:L), a Capgo backend running a version below 12.128.12, and at least one bundle that has been soft-deleted (app_versions.deleted set) while remaining associated with - or reassignable to - a live channel used by production devices via the /updates endpoint. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor-supplied CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L) describes a network-reachable, low-complexity, authenticated attack with high integrity impact and low availability impact on the vulnerable system only - consistent with an authenticated channel/bundle operator being able to influence which code reaches devices, rather than an unauthenticated takeover. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with a low-privileged channel-management account on a Capgo instance - either a malicious insider or someone who compromised such an account - marks a previously-pulled bundle as deleted in the UI but then reassigns or keeps it associated with a production channel. Because the /updates join omits the app_versions.deleted filter, devices polling that channel continue to receive the supposedly-deleted bundle, letting the attacker silently re-deploy a withdrawn, vulnerable, or backdoored version of the mobile app code. … |
| Remediation | Vendor-released patch: Capgo 12.128.12 - upgrade the Capgo backend to 12.128.12 or later as described in GHSA-hqq2-87cp-j83x (https://github.com/Cap-go/capgo/security/advisories/GHSA-hqq2-87cp-j83x) and corroborated by https://www.vulncheck.com/advisories/capgo-deleted-bundle-selection-via-missing-deletion-filter-in-updates-endpoint. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
24 hours: Identify current Capgo deployment version; audit administrative access and operations logs for the past 30 days; catalog all bundles deleted in the past 90 days. …
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External POC / Exploit Code
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