# CVE-2026-100619: Capgo manifest poisoning via app_versions bypass

Source: https://junglewise.ai/threats/cve-2026-100619-capgo-capgo-app-blocks-direct-user-inserts-into-the-public  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-26. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-100619 · Severity: high · CVSS 8.8 · Published 2026-09-26

Capgo is a mobile app deployment platform that delivers over-the-air (OTA) updates to applications. An authenticated user or API key holder with upload or write permissions can inject malicious manifest data that bypasses security restrictions, causing the platform to serve poisoned download URLs to end users. This enables attackers to distribute malicious app updates or other compromised content to all users of targeted applications.

Technologies: [Capgo.App](https://junglewise.ai/threats/technologies/capgo-app). Vendors: [Capgo](https://junglewise.ai/threats/vendors/capgo).

## Quick answers

**Is CVE-2026-100619 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-100619 being exploited in the wild.

**How severe is CVE-2026-100619?** High severity, with a CVSS score of 8.8, published 26 September 2026.

**Which products and versions are affected?** Capgo.App all.

**Is there a fix for CVE-2026-100619?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-100619 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-100619?** Check whether you run Capgo.App at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability exploits a privilege escalation in Capgo's Supabase database layer. While direct inserts into public.manifest are blocked by restrictive row-level security, attackers with upload+ or write+ rights can update public.app_versions.manifest on versions with storage_provider='r2-direct', which bypasses the bundle content-lock validation. The on_version_update async worker then trusts this attacker-controlled data and inserts the file_name, file_hash, and s3_path into public.manifest using service-role privileges, after which the /updates endpoint returns these service-role-created entries to clients as legitimate download URLs.

## Affected products

- Capgo capgo.app all

## Timeline

- 2026-09-26: disclosed: CVE-2026-100619 published; GHSA-443r-w5p8-rhr2 advisory released

## References

- [https://github.com/Cap-go/capgo.app/security/advisories/GHSA-443r-w5p8-rhr2](https://github.com/Cap-go/capgo.app/security/advisories/GHSA-443r-w5p8-rhr2)
- [https://www.vulncheck.com/advisories/capgo-ota-manifest-poisoning-via-app-versions-manifest-bypass](https://www.vulncheck.com/advisories/capgo-ota-manifest-poisoning-via-app-versions-manifest-bypass)

## Related threats

- [Capgo build upload proxy authorization bypass via TUS resource](https://junglewise.ai/threats/cve-2026-100625-capgo-capgo-app-exposes-a-native-build-tus-upload-proxy-supabase)
- [Capgo.app build upload proxy session expiry bypass](https://junglewise.ai/threats/cve-2026-100624-capgo-app-before-12-264-5-does-not-enforce-upload-expiry-or)
- [Capgo app icon update authorization bypass in worker](https://junglewise.ai/threats/cve-2026-100618-capgo-capgo-app-is-affected-by-an-authorization-flaw-in-the-app)
- [Capgo authentication bypass via PostgREST direct write to SSO providers](https://junglewise.ai/threats/cve-2026-88864-capgo-authentication-bypass-via-postgrest-direct-write-to-sso)
- [Capgo authorization bypass via stale channel permission overrides](https://junglewise.ai/threats/cve-2026-88860-capgo-authorization-bypass-via-stale-channel-permission-overrides)