altcha vulnerabilities

CVEs whose affected-version data names the altcha package (npm). Each record lists the affected and patched versions; check a specific version with the dependency checker or POST /api/sbom.

1 CVERSS

CVE-2025-68113Medium· 6.5

10mo ago

ALTCHA is privacy-first software for captcha and bot protection

ALTCHA is privacy-first software for captcha and bot protection. A cryptographic semantic binding flaw in ALTCHA libraries allows challenge payload splicing, which may enable replay attacks. The HMAC signature does not unambiguously bind…

▾ Sunlitaltcha-lib · altcha-libEPSS 0.46%via NVD