What’s Vulnerable › Vulnerabilities

CVE-2026-100614: Capgo before 12.244.1 Cross-Tenant Image Overwrite via Metadata Worker

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-26 · updated 2026-09-28
• Weakness: CWE-639

Description

Capgo before 12.244.1 contains a cross-tenant integrity vulnerability in the metadata-cleaning worker that trusts image object keys from mutable database rows without validating ownership. An authenticated attacker can place a victim tenant's image key in a row they control, causing the service-role worker to download and re-upload that object with sanitized metadata. Attackers can silently modify metadata in cross-tenant image objects by supplying known victim keys during authorized row updates, bypassing storage access controls through the confused-deputy metadata worker.

Affected products

• Cap-go capgo.app: before 12.244.1 — fixed in 12.244.1

How to fix

Upgrade to a fixed version: Cap-go capgo.app 12.244.1. Check the vendor advisory for mitigations.

References

• https://github.com/Cap-go/capgo.app/security/advisories/GHSA-rcrw-pg2v-j9xg
• https://www.vulncheck.com/advisories/capgo-before-12.244.1-cross-tenant-image-overwrite-via-metadata-worker
• https://github.com/Cap-go/capgo.app/security/advisories/GHSA-rcrw-pg2v-j9xg

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