Vulnerability · Published Sep 26, 2026 · Assigned by VulnCheck

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

High 8.8

In plain English

A high-severity authorization bypass via user-controlled key in capgo.app from Cap-go. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.4%top 64.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
Cap-go	capgo.app	0 – before 12.244.1

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

GitHub Security Advisory (GHSA-rcrw-pg2v-j9xg) vendor-advisory
VulnCheck Advisory: Capgo before 12.244.1 Cross-Tenant Image Overwrite via Metadata Worker third-party-advisory