XPath Injection in Logto-io Logto
CVE-2026-55789
Logto is the modern, open-source auth infrastructure for SaaS and AI apps. Prior to 1.41.0, Logto's self-hosted SAML application IdP built the signed SAML response and assertion by string-substituting user-controlled profile attributes suc…
CVSS v3 metric
CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N.
Affected products
- Logto-io Logto — versions < 1.41.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-55789?
- CVE-2026-55789 is a high-severity vulnerability in Logto-io Logto, classified under XML Injection (Blind XPath Injection). CVSS score: 8.5/10. Published 2026-07-10.
- How severe is CVE-2026-55789?
- High severity. CVSS v3 base score is 8.5 out of 10.