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CVE-2026-56329: Capgo before 12.128.2 contains a cross-tenant preview namespace collision vulnerability caused by non-bijective decoding of double underscores to dots in preview hostname parsing.

mediumCVSS 6.4CVE-2026-56329
Capgo before 12.128.2 contains a cross-tenant preview namespace collision vulnerability caused by non-bijective decoding of double underscores to dots in preview hostname parsing. Attackers can register app IDs with underscores that collide with other tenants' dotted app IDs, causing preview misrouting and denial of preview access for victim applications.

Details

Source
NVD Recent CVEs (US · database · site)
Severity
medium — CVSS 6.4
Published
2026-07-10
Last updated
2026-07-10
Exploitation
Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-56329

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-56329coverage & exploitation statusNVD · CVE.org

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