CVE-2026-63187: medium-severity vulnerability in logto-io logto
Logto: OS command injection vulnerability exists in the Commitlint workflow
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.3epss 0.4%
Logto is the modern, open-source auth infrastructure for SaaS and AI apps. From 1.40.1 until 1.41.0, Logto's .github/workflows/commitlint.yml directly interpolated github.event.pull_request.title into the Commitlint on PR title step's inline echo command before piping the title to npx commitlint. A pull request title containing a single quote could terminate the echo string and append arbitrary shell commands on the GitHub Actions runner. The pull_request trigger used a read-only GITHUB_TOKEN and did not expose repository secrets, but injected commands could alter or disrupt the ephemeral workflow execution. This issue is fixed in version 1.41.0.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Affected products
logto-io · logtoRelated CVEs — logto-io logto
In the same product, most dangerous first.
CVE-2026-62317HIGHLogto: ReDoS via unescaped user input in email subaddressing regex (blockSubaddressing)EPSS 0.7%CVE-2026-63188HIGHlogto-tunnel serves files outside --experience-path via path traversalEPSS 0.5%CVE-2026-82263HIGHLogto Server-Side Request Forgery via OIDC SSO Connector Issuer URLEPSS 0.5%CVE-2026-82262HIGHLogto Server-Side Request Forgery via webhook test endpointEPSS 0.5%CVE-2026-55377HIGHLogto: Account Center MFA management step-up bypass via WebAuthn registration verificationEPSS 0.4%CVE-2026-55789HIGHLogto: SAML IdP injects user-controlled profile attributes raw into signed assertions, allowing privilege escalation at relying Service ProvidersEPSS 0.3%